2005-03-25 20:47:23 +01:00
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/* Generic serial interface functions.
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2014-01-01 04:54:24 +01:00
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Copyright (C) 1992-2014 Free Software Foundation, Inc.
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2005-03-25 20:47:23 +01:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
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2005-03-25 20:47:23 +01:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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2005-03-25 20:47:23 +01:00
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#include "defs.h"
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#include "serial.h"
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2005-04-22 23:23:28 +02:00
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#include "ser-base.h"
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2005-03-25 20:47:23 +01:00
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#include "event-loop.h"
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2005-04-22 23:23:28 +02:00
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* NEWS: Mention native Windows support.
* Makefile.in (gdb_select_h, ser_tcp_h): New.
(ALLDEPFILES): Add ser-mingw.c.
(event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o)
(ser-tcp.o, ser-unix.o): Update.
(ser-mingw.o): New rule.
* configure: Regenerated.
* configure.ac: Add ser-mingw.o for mingw32.
* ser-mingw.c: New file.
* event-loop.c: Include "gdb_select.h".
(gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c.
* ser-base.c: Include "gdb_select.h".
(ser_base_wait_for): Use gdb_select.
* serial.c (serial_for_fd): New function.
(serial_fdopen): Try "terminal" before "hardwire". Initialize
the allocated struct serial.
(serial_wait_handle): New function.
* serial.h (serial_for_fd, serial_wait_handle): New prototypes.
(struct serial_ops) [USE_WIN32API]: Add wait_handle.
* gdb_select.h: New file.
* ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include.
(net_close, net_read_prim, net_write_prim): Make global.
(net_open): Likewise. Pass an exception set to select. Whitespace fix.
Document why we can not use gdb_select.
(_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here.
* ser-tcp.h: New file.
* inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here.
(handle_sigio): Use gdb_select.
(initialize_stdin_serial): New function.
* terminal.h (initialize_stdin_serial): New prototype.
* top.c (gdb_init): Call initialize_stdin_serial.
* mingw-hdep.c (gdb_select): New function, moved from gdb_select in
event-loop.c. Add exception condition support. Use serial_for_fd
and serial_wait_handle. Fix timeout handling.
* posix-hdep.c: Include "gdb_select.h".
(gdb_select): New function.
* remote-st.c (connect_command): Use gdb_select.
* ser-unix.c: Include "gdb_select.h".
(hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 23:01:43 +01:00
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#include "gdb_select.h"
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remove gdb_string.h
This removes gdb_string.h. This patch is purely mechanical. I
created it by running the two commands:
git rm common/gdb_string.h
perl -pi -e's/"gdb_string.h"/<string.h>/;' *.[chyl] */*.[chyl]
2013-11-18 Tom Tromey <tromey@redhat.com>
* common/gdb_string.h: Remove.
* aarch64-tdep.c: Use string.h, not gdb_string.h.
* ada-exp.y: Use string.h, not gdb_string.h.
* ada-lang.c: Use string.h, not gdb_string.h.
* ada-lex.l: Use string.h, not gdb_string.h.
* ada-typeprint.c: Use string.h, not gdb_string.h.
* ada-valprint.c: Use string.h, not gdb_string.h.
* aix-thread.c: Use string.h, not gdb_string.h.
* alpha-linux-tdep.c: Use string.h, not gdb_string.h.
* alpha-mdebug-tdep.c: Use string.h, not gdb_string.h.
* alpha-nat.c: Use string.h, not gdb_string.h.
* alpha-osf1-tdep.c: Use string.h, not gdb_string.h.
* alpha-tdep.c: Use string.h, not gdb_string.h.
* alphanbsd-tdep.c: Use string.h, not gdb_string.h.
* amd64-dicos-tdep.c: Use string.h, not gdb_string.h.
* amd64-linux-nat.c: Use string.h, not gdb_string.h.
* amd64-linux-tdep.c: Use string.h, not gdb_string.h.
* amd64-nat.c: Use string.h, not gdb_string.h.
* amd64-sol2-tdep.c: Use string.h, not gdb_string.h.
* amd64fbsd-tdep.c: Use string.h, not gdb_string.h.
* amd64obsd-tdep.c: Use string.h, not gdb_string.h.
* arch-utils.c: Use string.h, not gdb_string.h.
* arm-linux-nat.c: Use string.h, not gdb_string.h.
* arm-linux-tdep.c: Use string.h, not gdb_string.h.
* arm-tdep.c: Use string.h, not gdb_string.h.
* arm-wince-tdep.c: Use string.h, not gdb_string.h.
* armbsd-tdep.c: Use string.h, not gdb_string.h.
* armnbsd-nat.c: Use string.h, not gdb_string.h.
* armnbsd-tdep.c: Use string.h, not gdb_string.h.
* armobsd-tdep.c: Use string.h, not gdb_string.h.
* avr-tdep.c: Use string.h, not gdb_string.h.
* ax-gdb.c: Use string.h, not gdb_string.h.
* ax-general.c: Use string.h, not gdb_string.h.
* bcache.c: Use string.h, not gdb_string.h.
* bfin-tdep.c: Use string.h, not gdb_string.h.
* breakpoint.c: Use string.h, not gdb_string.h.
* build-id.c: Use string.h, not gdb_string.h.
* buildsym.c: Use string.h, not gdb_string.h.
* c-exp.y: Use string.h, not gdb_string.h.
* c-lang.c: Use string.h, not gdb_string.h.
* c-typeprint.c: Use string.h, not gdb_string.h.
* c-valprint.c: Use string.h, not gdb_string.h.
* charset.c: Use string.h, not gdb_string.h.
* cli-out.c: Use string.h, not gdb_string.h.
* cli/cli-cmds.c: Use string.h, not gdb_string.h.
* cli/cli-decode.c: Use string.h, not gdb_string.h.
* cli/cli-dump.c: Use string.h, not gdb_string.h.
* cli/cli-interp.c: Use string.h, not gdb_string.h.
* cli/cli-logging.c: Use string.h, not gdb_string.h.
* cli/cli-script.c: Use string.h, not gdb_string.h.
* cli/cli-setshow.c: Use string.h, not gdb_string.h.
* cli/cli-utils.c: Use string.h, not gdb_string.h.
* coffread.c: Use string.h, not gdb_string.h.
* common/common-utils.c: Use string.h, not gdb_string.h.
* common/filestuff.c: Use string.h, not gdb_string.h.
* common/linux-procfs.c: Use string.h, not gdb_string.h.
* common/linux-ptrace.c: Use string.h, not gdb_string.h.
* common/signals.c: Use string.h, not gdb_string.h.
* common/vec.h: Use string.h, not gdb_string.h.
* core-regset.c: Use string.h, not gdb_string.h.
* corefile.c: Use string.h, not gdb_string.h.
* corelow.c: Use string.h, not gdb_string.h.
* cp-abi.c: Use string.h, not gdb_string.h.
* cp-support.c: Use string.h, not gdb_string.h.
* cp-valprint.c: Use string.h, not gdb_string.h.
* cris-tdep.c: Use string.h, not gdb_string.h.
* d-lang.c: Use string.h, not gdb_string.h.
* dbxread.c: Use string.h, not gdb_string.h.
* dcache.c: Use string.h, not gdb_string.h.
* demangle.c: Use string.h, not gdb_string.h.
* dicos-tdep.c: Use string.h, not gdb_string.h.
* disasm.c: Use string.h, not gdb_string.h.
* doublest.c: Use string.h, not gdb_string.h.
* dsrec.c: Use string.h, not gdb_string.h.
* dummy-frame.c: Use string.h, not gdb_string.h.
* dwarf2-frame.c: Use string.h, not gdb_string.h.
* dwarf2loc.c: Use string.h, not gdb_string.h.
* dwarf2read.c: Use string.h, not gdb_string.h.
* elfread.c: Use string.h, not gdb_string.h.
* environ.c: Use string.h, not gdb_string.h.
* eval.c: Use string.h, not gdb_string.h.
* event-loop.c: Use string.h, not gdb_string.h.
* exceptions.c: Use string.h, not gdb_string.h.
* exec.c: Use string.h, not gdb_string.h.
* expprint.c: Use string.h, not gdb_string.h.
* f-exp.y: Use string.h, not gdb_string.h.
* f-lang.c: Use string.h, not gdb_string.h.
* f-typeprint.c: Use string.h, not gdb_string.h.
* f-valprint.c: Use string.h, not gdb_string.h.
* fbsd-nat.c: Use string.h, not gdb_string.h.
* findcmd.c: Use string.h, not gdb_string.h.
* findvar.c: Use string.h, not gdb_string.h.
* fork-child.c: Use string.h, not gdb_string.h.
* frame.c: Use string.h, not gdb_string.h.
* frv-linux-tdep.c: Use string.h, not gdb_string.h.
* frv-tdep.c: Use string.h, not gdb_string.h.
* gdb.c: Use string.h, not gdb_string.h.
* gdb_bfd.c: Use string.h, not gdb_string.h.
* gdbarch.c: Use string.h, not gdb_string.h.
* gdbtypes.c: Use string.h, not gdb_string.h.
* gnu-nat.c: Use string.h, not gdb_string.h.
* gnu-v2-abi.c: Use string.h, not gdb_string.h.
* gnu-v3-abi.c: Use string.h, not gdb_string.h.
* go-exp.y: Use string.h, not gdb_string.h.
* go-lang.c: Use string.h, not gdb_string.h.
* go32-nat.c: Use string.h, not gdb_string.h.
* hppa-hpux-tdep.c: Use string.h, not gdb_string.h.
* hppa-linux-nat.c: Use string.h, not gdb_string.h.
* hppanbsd-tdep.c: Use string.h, not gdb_string.h.
* hppaobsd-tdep.c: Use string.h, not gdb_string.h.
* i386-cygwin-tdep.c: Use string.h, not gdb_string.h.
* i386-dicos-tdep.c: Use string.h, not gdb_string.h.
* i386-linux-nat.c: Use string.h, not gdb_string.h.
* i386-linux-tdep.c: Use string.h, not gdb_string.h.
* i386-nto-tdep.c: Use string.h, not gdb_string.h.
* i386-sol2-tdep.c: Use string.h, not gdb_string.h.
* i386-tdep.c: Use string.h, not gdb_string.h.
* i386bsd-tdep.c: Use string.h, not gdb_string.h.
* i386gnu-nat.c: Use string.h, not gdb_string.h.
* i386nbsd-tdep.c: Use string.h, not gdb_string.h.
* i386obsd-tdep.c: Use string.h, not gdb_string.h.
* i387-tdep.c: Use string.h, not gdb_string.h.
* ia64-libunwind-tdep.c: Use string.h, not gdb_string.h.
* ia64-linux-nat.c: Use string.h, not gdb_string.h.
* inf-child.c: Use string.h, not gdb_string.h.
* inf-ptrace.c: Use string.h, not gdb_string.h.
* inf-ttrace.c: Use string.h, not gdb_string.h.
* infcall.c: Use string.h, not gdb_string.h.
* infcmd.c: Use string.h, not gdb_string.h.
* inflow.c: Use string.h, not gdb_string.h.
* infrun.c: Use string.h, not gdb_string.h.
* interps.c: Use string.h, not gdb_string.h.
* iq2000-tdep.c: Use string.h, not gdb_string.h.
* irix5-nat.c: Use string.h, not gdb_string.h.
* jv-exp.y: Use string.h, not gdb_string.h.
* jv-lang.c: Use string.h, not gdb_string.h.
* jv-typeprint.c: Use string.h, not gdb_string.h.
* jv-valprint.c: Use string.h, not gdb_string.h.
* language.c: Use string.h, not gdb_string.h.
* linux-fork.c: Use string.h, not gdb_string.h.
* linux-nat.c: Use string.h, not gdb_string.h.
* lm32-tdep.c: Use string.h, not gdb_string.h.
* m2-exp.y: Use string.h, not gdb_string.h.
* m2-typeprint.c: Use string.h, not gdb_string.h.
* m32c-tdep.c: Use string.h, not gdb_string.h.
* m32r-linux-nat.c: Use string.h, not gdb_string.h.
* m32r-linux-tdep.c: Use string.h, not gdb_string.h.
* m32r-rom.c: Use string.h, not gdb_string.h.
* m32r-tdep.c: Use string.h, not gdb_string.h.
* m68hc11-tdep.c: Use string.h, not gdb_string.h.
* m68k-tdep.c: Use string.h, not gdb_string.h.
* m68kbsd-tdep.c: Use string.h, not gdb_string.h.
* m68klinux-nat.c: Use string.h, not gdb_string.h.
* m68klinux-tdep.c: Use string.h, not gdb_string.h.
* m88k-tdep.c: Use string.h, not gdb_string.h.
* macrocmd.c: Use string.h, not gdb_string.h.
* main.c: Use string.h, not gdb_string.h.
* mdebugread.c: Use string.h, not gdb_string.h.
* mem-break.c: Use string.h, not gdb_string.h.
* memattr.c: Use string.h, not gdb_string.h.
* memory-map.c: Use string.h, not gdb_string.h.
* mep-tdep.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-break.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-disas.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-env.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-stack.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-var.c: Use string.h, not gdb_string.h.
* mi/mi-cmds.c: Use string.h, not gdb_string.h.
* mi/mi-console.c: Use string.h, not gdb_string.h.
* mi/mi-getopt.c: Use string.h, not gdb_string.h.
* mi/mi-interp.c: Use string.h, not gdb_string.h.
* mi/mi-main.c: Use string.h, not gdb_string.h.
* mi/mi-parse.c: Use string.h, not gdb_string.h.
* microblaze-rom.c: Use string.h, not gdb_string.h.
* microblaze-tdep.c: Use string.h, not gdb_string.h.
* mingw-hdep.c: Use string.h, not gdb_string.h.
* minidebug.c: Use string.h, not gdb_string.h.
* minsyms.c: Use string.h, not gdb_string.h.
* mips-irix-tdep.c: Use string.h, not gdb_string.h.
* mips-linux-tdep.c: Use string.h, not gdb_string.h.
* mips-tdep.c: Use string.h, not gdb_string.h.
* mips64obsd-tdep.c: Use string.h, not gdb_string.h.
* mipsnbsd-tdep.c: Use string.h, not gdb_string.h.
* mipsread.c: Use string.h, not gdb_string.h.
* mn10300-linux-tdep.c: Use string.h, not gdb_string.h.
* mn10300-tdep.c: Use string.h, not gdb_string.h.
* monitor.c: Use string.h, not gdb_string.h.
* moxie-tdep.c: Use string.h, not gdb_string.h.
* mt-tdep.c: Use string.h, not gdb_string.h.
* nbsd-tdep.c: Use string.h, not gdb_string.h.
* nios2-linux-tdep.c: Use string.h, not gdb_string.h.
* nto-procfs.c: Use string.h, not gdb_string.h.
* nto-tdep.c: Use string.h, not gdb_string.h.
* objc-lang.c: Use string.h, not gdb_string.h.
* objfiles.c: Use string.h, not gdb_string.h.
* opencl-lang.c: Use string.h, not gdb_string.h.
* osabi.c: Use string.h, not gdb_string.h.
* osdata.c: Use string.h, not gdb_string.h.
* p-exp.y: Use string.h, not gdb_string.h.
* p-lang.c: Use string.h, not gdb_string.h.
* p-typeprint.c: Use string.h, not gdb_string.h.
* parse.c: Use string.h, not gdb_string.h.
* posix-hdep.c: Use string.h, not gdb_string.h.
* ppc-linux-nat.c: Use string.h, not gdb_string.h.
* ppc-sysv-tdep.c: Use string.h, not gdb_string.h.
* ppcfbsd-tdep.c: Use string.h, not gdb_string.h.
* ppcnbsd-tdep.c: Use string.h, not gdb_string.h.
* ppcobsd-tdep.c: Use string.h, not gdb_string.h.
* printcmd.c: Use string.h, not gdb_string.h.
* procfs.c: Use string.h, not gdb_string.h.
* prologue-value.c: Use string.h, not gdb_string.h.
* python/py-auto-load.c: Use string.h, not gdb_string.h.
* python/py-gdb-readline.c: Use string.h, not gdb_string.h.
* ravenscar-thread.c: Use string.h, not gdb_string.h.
* regcache.c: Use string.h, not gdb_string.h.
* registry.c: Use string.h, not gdb_string.h.
* remote-fileio.c: Use string.h, not gdb_string.h.
* remote-m32r-sdi.c: Use string.h, not gdb_string.h.
* remote-mips.c: Use string.h, not gdb_string.h.
* remote-sim.c: Use string.h, not gdb_string.h.
* remote.c: Use string.h, not gdb_string.h.
* reverse.c: Use string.h, not gdb_string.h.
* rs6000-aix-tdep.c: Use string.h, not gdb_string.h.
* ser-base.c: Use string.h, not gdb_string.h.
* ser-go32.c: Use string.h, not gdb_string.h.
* ser-mingw.c: Use string.h, not gdb_string.h.
* ser-pipe.c: Use string.h, not gdb_string.h.
* ser-tcp.c: Use string.h, not gdb_string.h.
* ser-unix.c: Use string.h, not gdb_string.h.
* serial.c: Use string.h, not gdb_string.h.
* sh-tdep.c: Use string.h, not gdb_string.h.
* sh64-tdep.c: Use string.h, not gdb_string.h.
* shnbsd-tdep.c: Use string.h, not gdb_string.h.
* skip.c: Use string.h, not gdb_string.h.
* sol-thread.c: Use string.h, not gdb_string.h.
* solib-dsbt.c: Use string.h, not gdb_string.h.
* solib-frv.c: Use string.h, not gdb_string.h.
* solib-osf.c: Use string.h, not gdb_string.h.
* solib-spu.c: Use string.h, not gdb_string.h.
* solib-target.c: Use string.h, not gdb_string.h.
* solib.c: Use string.h, not gdb_string.h.
* somread.c: Use string.h, not gdb_string.h.
* source.c: Use string.h, not gdb_string.h.
* sparc-nat.c: Use string.h, not gdb_string.h.
* sparc-sol2-tdep.c: Use string.h, not gdb_string.h.
* sparc-tdep.c: Use string.h, not gdb_string.h.
* sparc64-tdep.c: Use string.h, not gdb_string.h.
* sparc64fbsd-tdep.c: Use string.h, not gdb_string.h.
* sparc64nbsd-tdep.c: Use string.h, not gdb_string.h.
* sparcnbsd-tdep.c: Use string.h, not gdb_string.h.
* spu-linux-nat.c: Use string.h, not gdb_string.h.
* spu-multiarch.c: Use string.h, not gdb_string.h.
* spu-tdep.c: Use string.h, not gdb_string.h.
* stabsread.c: Use string.h, not gdb_string.h.
* stack.c: Use string.h, not gdb_string.h.
* std-regs.c: Use string.h, not gdb_string.h.
* symfile.c: Use string.h, not gdb_string.h.
* symmisc.c: Use string.h, not gdb_string.h.
* symtab.c: Use string.h, not gdb_string.h.
* target.c: Use string.h, not gdb_string.h.
* thread.c: Use string.h, not gdb_string.h.
* tilegx-linux-nat.c: Use string.h, not gdb_string.h.
* tilegx-tdep.c: Use string.h, not gdb_string.h.
* top.c: Use string.h, not gdb_string.h.
* tracepoint.c: Use string.h, not gdb_string.h.
* tui/tui-command.c: Use string.h, not gdb_string.h.
* tui/tui-data.c: Use string.h, not gdb_string.h.
* tui/tui-disasm.c: Use string.h, not gdb_string.h.
* tui/tui-file.c: Use string.h, not gdb_string.h.
* tui/tui-layout.c: Use string.h, not gdb_string.h.
* tui/tui-out.c: Use string.h, not gdb_string.h.
* tui/tui-regs.c: Use string.h, not gdb_string.h.
* tui/tui-source.c: Use string.h, not gdb_string.h.
* tui/tui-stack.c: Use string.h, not gdb_string.h.
* tui/tui-win.c: Use string.h, not gdb_string.h.
* tui/tui-windata.c: Use string.h, not gdb_string.h.
* tui/tui-winsource.c: Use string.h, not gdb_string.h.
* typeprint.c: Use string.h, not gdb_string.h.
* ui-file.c: Use string.h, not gdb_string.h.
* ui-out.c: Use string.h, not gdb_string.h.
* user-regs.c: Use string.h, not gdb_string.h.
* utils.c: Use string.h, not gdb_string.h.
* v850-tdep.c: Use string.h, not gdb_string.h.
* valarith.c: Use string.h, not gdb_string.h.
* valops.c: Use string.h, not gdb_string.h.
* valprint.c: Use string.h, not gdb_string.h.
* value.c: Use string.h, not gdb_string.h.
* varobj.c: Use string.h, not gdb_string.h.
* vax-tdep.c: Use string.h, not gdb_string.h.
* vaxnbsd-tdep.c: Use string.h, not gdb_string.h.
* vaxobsd-tdep.c: Use string.h, not gdb_string.h.
* windows-nat.c: Use string.h, not gdb_string.h.
* xcoffread.c: Use string.h, not gdb_string.h.
* xml-support.c: Use string.h, not gdb_string.h.
* xstormy16-tdep.c: Use string.h, not gdb_string.h.
* xtensa-linux-nat.c: Use string.h, not gdb_string.h.
2013-11-06 15:14:23 +01:00
|
|
|
#include <string.h>
|
2012-07-18 06:36:24 +02:00
|
|
|
#include "gdb_assert.h"
|
2005-04-22 22:32:01 +02:00
|
|
|
#include <sys/time.h>
|
2005-04-21 07:34:33 +02:00
|
|
|
#ifdef USE_WIN32API
|
|
|
|
|
#include <winsock2.h>
|
|
|
|
|
#endif
|
2005-03-25 20:47:23 +01:00
|
|
|
|
2005-04-21 23:23:25 +02:00
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
static timer_handler_func push_event;
|
|
|
|
|
static handler_func fd_event;
|
|
|
|
|
|
|
|
|
|
/* Event handling for ASYNC serial code.
|
|
|
|
|
|
|
|
|
|
At any time the SERIAL device either: has an empty FIFO and is
|
|
|
|
|
waiting on a FD event; or has a non-empty FIFO/error condition and
|
|
|
|
|
is constantly scheduling timer events.
|
|
|
|
|
|
|
|
|
|
ASYNC only stops pestering its client when it is de-async'ed or it
|
2011-01-11 22:53:25 +01:00
|
|
|
is told to go away. */
|
2005-03-25 20:47:23 +01:00
|
|
|
|
|
|
|
|
/* Value of scb->async_state: */
|
|
|
|
|
enum {
|
|
|
|
|
/* >= 0 (TIMER_SCHEDULED) */
|
2011-01-11 22:53:25 +01:00
|
|
|
/* The ID of the currently scheduled timer event. This state is
|
2005-03-25 20:47:23 +01:00
|
|
|
rarely encountered. Timer events are one-off so as soon as the
|
2011-01-11 22:53:25 +01:00
|
|
|
event is delivered the state is shanged to NOTHING_SCHEDULED. */
|
2005-03-25 20:47:23 +01:00
|
|
|
FD_SCHEDULED = -1,
|
|
|
|
|
/* The fd_event() handler is scheduled. It is called when ever the
|
2011-01-11 22:53:25 +01:00
|
|
|
file descriptor becomes ready. */
|
2005-03-25 20:47:23 +01:00
|
|
|
NOTHING_SCHEDULED = -2
|
|
|
|
|
/* Either no task is scheduled (just going into ASYNC mode) or a
|
|
|
|
|
timer event has just gone off and the current state has been
|
2011-01-11 22:53:25 +01:00
|
|
|
forced into nothing scheduled. */
|
2005-03-25 20:47:23 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Identify and schedule the next ASYNC task based on scb->async_state
|
|
|
|
|
and scb->buf* (the input FIFO). A state machine is used to avoid
|
|
|
|
|
the need to make redundant calls into the event-loop - the next
|
2011-01-11 22:53:25 +01:00
|
|
|
scheduled task is only changed when needed. */
|
2005-03-25 20:47:23 +01:00
|
|
|
|
2010-04-30 00:51:04 +02:00
|
|
|
static void
|
2005-03-25 20:47:23 +01:00
|
|
|
reschedule (struct serial *scb)
|
|
|
|
|
{
|
|
|
|
|
if (serial_is_async_p (scb))
|
|
|
|
|
{
|
|
|
|
|
int next_state;
|
2010-05-17 01:49:58 +02:00
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
switch (scb->async_state)
|
|
|
|
|
{
|
|
|
|
|
case FD_SCHEDULED:
|
|
|
|
|
if (scb->bufcnt == 0)
|
|
|
|
|
next_state = FD_SCHEDULED;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
delete_file_handler (scb->fd);
|
|
|
|
|
next_state = create_timer (0, push_event, scb);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case NOTHING_SCHEDULED:
|
|
|
|
|
if (scb->bufcnt == 0)
|
|
|
|
|
{
|
|
|
|
|
add_file_handler (scb->fd, fd_event, scb);
|
|
|
|
|
next_state = FD_SCHEDULED;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
next_state = create_timer (0, push_event, scb);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default: /* TIMER SCHEDULED */
|
|
|
|
|
if (scb->bufcnt == 0)
|
|
|
|
|
{
|
|
|
|
|
delete_timer (scb->async_state);
|
|
|
|
|
add_file_handler (scb->fd, fd_event, scb);
|
|
|
|
|
next_state = FD_SCHEDULED;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
next_state = scb->async_state;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (serial_debug_p (scb))
|
|
|
|
|
{
|
|
|
|
|
switch (next_state)
|
|
|
|
|
{
|
|
|
|
|
case FD_SCHEDULED:
|
|
|
|
|
if (scb->async_state != FD_SCHEDULED)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->fd-scheduled]\n",
|
|
|
|
|
scb->fd);
|
|
|
|
|
break;
|
|
|
|
|
default: /* TIMER SCHEDULED */
|
|
|
|
|
if (scb->async_state == FD_SCHEDULED)
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->timer-scheduled]\n",
|
|
|
|
|
scb->fd);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
scb->async_state = next_state;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2012-06-11 22:36:53 +02:00
|
|
|
/* Run the SCB's async handle, and reschedule, if the handler doesn't
|
|
|
|
|
close SCB. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
run_async_handler_and_reschedule (struct serial *scb)
|
|
|
|
|
{
|
|
|
|
|
int is_open;
|
|
|
|
|
|
|
|
|
|
/* Take a reference, so a serial_close call within the handler
|
|
|
|
|
doesn't make SCB a dangling pointer. */
|
|
|
|
|
serial_ref (scb);
|
|
|
|
|
|
|
|
|
|
/* Run the handler. */
|
|
|
|
|
scb->async_handler (scb, scb->async_context);
|
|
|
|
|
|
|
|
|
|
is_open = serial_is_open (scb);
|
|
|
|
|
serial_unref (scb);
|
|
|
|
|
|
|
|
|
|
/* Get ready for more, if not already closed. */
|
|
|
|
|
if (is_open)
|
|
|
|
|
reschedule (scb);
|
|
|
|
|
}
|
|
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
/* FD_EVENT: This is scheduled when the input FIFO is empty (and there
|
|
|
|
|
is no pending error). As soon as data arrives, it is read into the
|
|
|
|
|
input FIFO and the client notified. The client should then drain
|
|
|
|
|
the FIFO using readchar(). If the FIFO isn't immediatly emptied,
|
2011-01-11 22:53:25 +01:00
|
|
|
push_event() is used to nag the client until it is. */
|
2005-03-25 20:47:23 +01:00
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
fd_event (int error, void *context)
|
|
|
|
|
{
|
|
|
|
|
struct serial *scb = context;
|
|
|
|
|
if (error != 0)
|
|
|
|
|
{
|
|
|
|
|
scb->bufcnt = SERIAL_ERROR;
|
|
|
|
|
}
|
|
|
|
|
else if (scb->bufcnt == 0)
|
|
|
|
|
{
|
|
|
|
|
/* Prime the input FIFO. The readchar() function is used to
|
|
|
|
|
pull characters out of the buffer. See also
|
2011-01-11 22:53:25 +01:00
|
|
|
generic_readchar(). */
|
2005-03-25 20:47:23 +01:00
|
|
|
int nr;
|
2005-04-21 07:34:33 +02:00
|
|
|
nr = scb->ops->read_prim (scb, BUFSIZ);
|
2005-03-25 20:47:23 +01:00
|
|
|
if (nr == 0)
|
|
|
|
|
{
|
|
|
|
|
scb->bufcnt = SERIAL_EOF;
|
|
|
|
|
}
|
|
|
|
|
else if (nr > 0)
|
|
|
|
|
{
|
|
|
|
|
scb->bufcnt = nr;
|
|
|
|
|
scb->bufp = scb->buf;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
scb->bufcnt = SERIAL_ERROR;
|
|
|
|
|
}
|
|
|
|
|
}
|
2012-06-11 22:36:53 +02:00
|
|
|
run_async_handler_and_reschedule (scb);
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* PUSH_EVENT: The input FIFO is non-empty (or there is a pending
|
|
|
|
|
error). Nag the client until all the data has been read. In the
|
|
|
|
|
case of errors, the client will need to close or de-async the
|
2011-01-11 22:53:25 +01:00
|
|
|
device before naging stops. */
|
2005-03-25 20:47:23 +01:00
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
push_event (void *context)
|
|
|
|
|
{
|
|
|
|
|
struct serial *scb = context;
|
2010-05-17 01:49:58 +02:00
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
scb->async_state = NOTHING_SCHEDULED; /* Timers are one-off */
|
2012-06-11 22:36:53 +02:00
|
|
|
run_async_handler_and_reschedule (scb);
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
2005-04-21 07:34:33 +02:00
|
|
|
/* Wait for input on scb, with timeout seconds. Returns 0 on success,
|
2011-01-11 22:53:25 +01:00
|
|
|
otherwise SERIAL_TIMEOUT or SERIAL_ERROR. */
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
ser_base_wait_for (struct serial *scb, int timeout)
|
|
|
|
|
{
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
int numfds;
|
|
|
|
|
struct timeval tv;
|
|
|
|
|
fd_set readfds, exceptfds;
|
|
|
|
|
|
|
|
|
|
/* NOTE: Some OS's can scramble the READFDS when the select()
|
|
|
|
|
call fails (ex the kernel with Red Hat 5.2). Initialize all
|
2011-01-11 22:53:25 +01:00
|
|
|
arguments before each call. */
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
tv.tv_sec = timeout;
|
|
|
|
|
tv.tv_usec = 0;
|
|
|
|
|
|
|
|
|
|
FD_ZERO (&readfds);
|
|
|
|
|
FD_ZERO (&exceptfds);
|
|
|
|
|
FD_SET (scb->fd, &readfds);
|
|
|
|
|
FD_SET (scb->fd, &exceptfds);
|
|
|
|
|
|
|
|
|
|
if (timeout >= 0)
|
* NEWS: Mention native Windows support.
* Makefile.in (gdb_select_h, ser_tcp_h): New.
(ALLDEPFILES): Add ser-mingw.c.
(event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o)
(ser-tcp.o, ser-unix.o): Update.
(ser-mingw.o): New rule.
* configure: Regenerated.
* configure.ac: Add ser-mingw.o for mingw32.
* ser-mingw.c: New file.
* event-loop.c: Include "gdb_select.h".
(gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c.
* ser-base.c: Include "gdb_select.h".
(ser_base_wait_for): Use gdb_select.
* serial.c (serial_for_fd): New function.
(serial_fdopen): Try "terminal" before "hardwire". Initialize
the allocated struct serial.
(serial_wait_handle): New function.
* serial.h (serial_for_fd, serial_wait_handle): New prototypes.
(struct serial_ops) [USE_WIN32API]: Add wait_handle.
* gdb_select.h: New file.
* ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include.
(net_close, net_read_prim, net_write_prim): Make global.
(net_open): Likewise. Pass an exception set to select. Whitespace fix.
Document why we can not use gdb_select.
(_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here.
* ser-tcp.h: New file.
* inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here.
(handle_sigio): Use gdb_select.
(initialize_stdin_serial): New function.
* terminal.h (initialize_stdin_serial): New prototype.
* top.c (gdb_init): Call initialize_stdin_serial.
* mingw-hdep.c (gdb_select): New function, moved from gdb_select in
event-loop.c. Add exception condition support. Use serial_for_fd
and serial_wait_handle. Fix timeout handling.
* posix-hdep.c: Include "gdb_select.h".
(gdb_select): New function.
* remote-st.c (connect_command): Use gdb_select.
* ser-unix.c: Include "gdb_select.h".
(hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 23:01:43 +01:00
|
|
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, &exceptfds, &tv);
|
2005-04-21 07:34:33 +02:00
|
|
|
else
|
* NEWS: Mention native Windows support.
* Makefile.in (gdb_select_h, ser_tcp_h): New.
(ALLDEPFILES): Add ser-mingw.c.
(event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o)
(ser-tcp.o, ser-unix.o): Update.
(ser-mingw.o): New rule.
* configure: Regenerated.
* configure.ac: Add ser-mingw.o for mingw32.
* ser-mingw.c: New file.
* event-loop.c: Include "gdb_select.h".
(gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c.
* ser-base.c: Include "gdb_select.h".
(ser_base_wait_for): Use gdb_select.
* serial.c (serial_for_fd): New function.
(serial_fdopen): Try "terminal" before "hardwire". Initialize
the allocated struct serial.
(serial_wait_handle): New function.
* serial.h (serial_for_fd, serial_wait_handle): New prototypes.
(struct serial_ops) [USE_WIN32API]: Add wait_handle.
* gdb_select.h: New file.
* ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include.
(net_close, net_read_prim, net_write_prim): Make global.
(net_open): Likewise. Pass an exception set to select. Whitespace fix.
Document why we can not use gdb_select.
(_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here.
* ser-tcp.h: New file.
* inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here.
(handle_sigio): Use gdb_select.
(initialize_stdin_serial): New function.
* terminal.h (initialize_stdin_serial): New prototype.
* top.c (gdb_init): Call initialize_stdin_serial.
* mingw-hdep.c (gdb_select): New function, moved from gdb_select in
event-loop.c. Add exception condition support. Use serial_for_fd
and serial_wait_handle. Fix timeout handling.
* posix-hdep.c: Include "gdb_select.h".
(gdb_select): New function.
* remote-st.c (connect_command): Use gdb_select.
* ser-unix.c: Include "gdb_select.h".
(hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 23:01:43 +01:00
|
|
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, &exceptfds, 0);
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
if (numfds <= 0)
|
|
|
|
|
{
|
|
|
|
|
if (numfds == 0)
|
|
|
|
|
return SERIAL_TIMEOUT;
|
|
|
|
|
else if (errno == EINTR)
|
|
|
|
|
continue;
|
|
|
|
|
else
|
2011-01-11 22:53:25 +01:00
|
|
|
return SERIAL_ERROR; /* Got an error from select or
|
|
|
|
|
poll. */
|
2005-04-21 07:34:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2012-07-18 06:36:24 +02:00
|
|
|
/* Read any error output we might have. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
ser_base_read_error_fd (struct serial *scb, int close_fd)
|
|
|
|
|
{
|
|
|
|
|
if (scb->error_fd != -1)
|
|
|
|
|
{
|
|
|
|
|
ssize_t s;
|
|
|
|
|
char buf[GDB_MI_MSG_WIDTH + 1];
|
|
|
|
|
|
|
|
|
|
for (;;)
|
|
|
|
|
{
|
|
|
|
|
char *current;
|
|
|
|
|
char *newline;
|
|
|
|
|
int to_read = GDB_MI_MSG_WIDTH;
|
|
|
|
|
int num_bytes = -1;
|
|
|
|
|
|
|
|
|
|
if (scb->ops->avail)
|
|
|
|
|
num_bytes = (scb->ops->avail)(scb, scb->error_fd);
|
|
|
|
|
|
|
|
|
|
if (num_bytes != -1)
|
|
|
|
|
to_read = (num_bytes < to_read) ? num_bytes : to_read;
|
|
|
|
|
|
|
|
|
|
if (to_read == 0)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
s = read (scb->error_fd, &buf, to_read);
|
|
|
|
|
if ((s == -1) || (s == 0 && !close_fd))
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
if (s == 0 && close_fd)
|
|
|
|
|
{
|
|
|
|
|
/* End of file. */
|
|
|
|
|
close (scb->error_fd);
|
|
|
|
|
scb->error_fd = -1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* In theory, embedded newlines are not a problem.
|
|
|
|
|
But for MI, we want each output line to have just
|
|
|
|
|
one newline for legibility. So output things
|
|
|
|
|
in newline chunks. */
|
|
|
|
|
gdb_assert (s > 0 && s <= GDB_MI_MSG_WIDTH);
|
|
|
|
|
buf[s] = '\0';
|
|
|
|
|
current = buf;
|
|
|
|
|
while ((newline = strstr (current, "\n")) != NULL)
|
|
|
|
|
{
|
|
|
|
|
*newline = '\0';
|
|
|
|
|
fputs_unfiltered (current, gdb_stderr);
|
|
|
|
|
fputs_unfiltered ("\n", gdb_stderr);
|
|
|
|
|
current = newline + 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fputs_unfiltered (current, gdb_stderr);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2005-04-21 07:34:33 +02:00
|
|
|
/* Read a character with user-specified timeout. TIMEOUT is number of seconds
|
|
|
|
|
to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
|
|
|
|
|
char if successful. Returns -2 if timeout expired, EOF if line dropped
|
2011-01-11 22:53:25 +01:00
|
|
|
dead, or -3 for any other error (see errno in that case). */
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
do_ser_base_readchar (struct serial *scb, int timeout)
|
|
|
|
|
{
|
|
|
|
|
int status;
|
|
|
|
|
int delta;
|
|
|
|
|
|
|
|
|
|
/* We have to be able to keep the GUI alive here, so we break the
|
|
|
|
|
original timeout into steps of 1 second, running the "keep the
|
|
|
|
|
GUI alive" hook each time through the loop.
|
|
|
|
|
|
|
|
|
|
Also, timeout = 0 means to poll, so we just set the delta to 0,
|
|
|
|
|
so we will only go through the loop once. */
|
|
|
|
|
|
|
|
|
|
delta = (timeout == 0 ? 0 : 1);
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
/* N.B. The UI may destroy our world (for instance by calling
|
|
|
|
|
remote_stop,) in which case we want to get out of here as
|
|
|
|
|
quickly as possible. It is not safe to touch scb, since
|
|
|
|
|
someone else might have freed it. The
|
|
|
|
|
deprecated_ui_loop_hook signals that we should exit by
|
|
|
|
|
returning 1. */
|
|
|
|
|
|
|
|
|
|
if (deprecated_ui_loop_hook)
|
|
|
|
|
{
|
|
|
|
|
if (deprecated_ui_loop_hook (0))
|
|
|
|
|
return SERIAL_TIMEOUT;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
status = ser_base_wait_for (scb, delta);
|
|
|
|
|
if (timeout > 0)
|
|
|
|
|
timeout -= delta;
|
|
|
|
|
|
|
|
|
|
/* If we got a character or an error back from wait_for, then we can
|
2011-01-11 22:53:25 +01:00
|
|
|
break from the loop before the timeout is completed. */
|
2005-04-21 07:34:33 +02:00
|
|
|
if (status != SERIAL_TIMEOUT)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* If we have exhausted the original timeout, then generate
|
2011-01-11 22:53:25 +01:00
|
|
|
a SERIAL_TIMEOUT, and pass it out of the loop. */
|
2005-04-21 07:34:33 +02:00
|
|
|
else if (timeout == 0)
|
|
|
|
|
{
|
|
|
|
|
status = SERIAL_TIMEOUT;
|
|
|
|
|
break;
|
|
|
|
|
}
|
2012-07-18 06:36:24 +02:00
|
|
|
|
|
|
|
|
/* We also need to check and consume the stderr because it could
|
|
|
|
|
come before the stdout for some stubs. If we just sit and wait
|
|
|
|
|
for stdout, we would hit a deadlock for that case. */
|
|
|
|
|
ser_base_read_error_fd (scb, 0);
|
2005-04-21 07:34:33 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (status < 0)
|
|
|
|
|
return status;
|
|
|
|
|
|
|
|
|
|
status = scb->ops->read_prim (scb, BUFSIZ);
|
|
|
|
|
|
|
|
|
|
if (status <= 0)
|
|
|
|
|
{
|
|
|
|
|
if (status == 0)
|
2007-10-12 22:14:57 +02:00
|
|
|
return SERIAL_EOF;
|
2005-04-21 07:34:33 +02:00
|
|
|
else
|
|
|
|
|
/* Got an error from read. */
|
|
|
|
|
return SERIAL_ERROR;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
scb->bufcnt = status;
|
|
|
|
|
scb->bufcnt--;
|
|
|
|
|
scb->bufp = scb->buf;
|
|
|
|
|
return *scb->bufp++;
|
|
|
|
|
}
|
|
|
|
|
|
2011-01-11 22:53:25 +01:00
|
|
|
/* Perform operations common to both old and new readchar. */
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
/* Return the next character from the input FIFO. If the FIFO is
|
|
|
|
|
empty, call the SERIAL specific routine to try and read in more
|
|
|
|
|
characters.
|
|
|
|
|
|
|
|
|
|
Initially data from the input FIFO is returned (fd_event()
|
|
|
|
|
pre-reads the input into that FIFO. Once that has been emptied,
|
|
|
|
|
further data is obtained by polling the input FD using the device
|
|
|
|
|
specific readchar() function. Note: reschedule() is called after
|
|
|
|
|
every read. This is because there is no guarentee that the lower
|
|
|
|
|
level fd_event() poll_event() code (which also calls reschedule())
|
2011-01-11 22:53:25 +01:00
|
|
|
will be called. */
|
2005-04-21 07:34:33 +02:00
|
|
|
|
|
|
|
|
int
|
|
|
|
|
generic_readchar (struct serial *scb, int timeout,
|
|
|
|
|
int (do_readchar) (struct serial *scb, int timeout))
|
|
|
|
|
{
|
|
|
|
|
int ch;
|
|
|
|
|
if (scb->bufcnt > 0)
|
|
|
|
|
{
|
|
|
|
|
ch = *scb->bufp;
|
|
|
|
|
scb->bufcnt--;
|
|
|
|
|
scb->bufp++;
|
|
|
|
|
}
|
|
|
|
|
else if (scb->bufcnt < 0)
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
/* Some errors/eof are are sticky. */
|
2005-04-21 07:34:33 +02:00
|
|
|
ch = scb->bufcnt;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ch = do_readchar (scb, timeout);
|
|
|
|
|
if (ch < 0)
|
|
|
|
|
{
|
|
|
|
|
switch ((enum serial_rc) ch)
|
|
|
|
|
{
|
|
|
|
|
case SERIAL_EOF:
|
|
|
|
|
case SERIAL_ERROR:
|
2011-01-11 22:53:25 +01:00
|
|
|
/* Make the error/eof stick. */
|
2005-04-21 07:34:33 +02:00
|
|
|
scb->bufcnt = ch;
|
|
|
|
|
break;
|
|
|
|
|
case SERIAL_TIMEOUT:
|
|
|
|
|
scb->bufcnt = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2007-04-08 17:20:07 +02:00
|
|
|
|
2012-07-18 06:36:24 +02:00
|
|
|
/* Read any error output we might have. */
|
|
|
|
|
ser_base_read_error_fd (scb, 1);
|
2007-04-08 17:20:07 +02:00
|
|
|
|
2005-04-21 07:34:33 +02:00
|
|
|
reschedule (scb);
|
|
|
|
|
return ch;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
ser_base_readchar (struct serial *scb, int timeout)
|
|
|
|
|
{
|
|
|
|
|
return generic_readchar (scb, timeout, do_ser_base_readchar);
|
|
|
|
|
}
|
|
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
int
|
serial_write: change prototype to take a void-pointer buffer.
While remote.c works with "char *" buffers most of the time, other
remote targets have binary-ish-er protocols, and choose to use
"unsigned char" throughout, like e.g., remote-mips.c or
remote-m32r-sdi.c. That results in -Wpointer-sign warnings in those
targets, unless we add casts in calls to serial_write. Since
serial_write is only concerned about sending raw host bytes out, and
serial_ops->write_prim already works with "void *"/"size_t", a similar
interface to the "write" or "send" system calls, I find it natural to
change serial_write's prototype accordingly, avoiding the need for
casts.
Tested on x86_64 Fedora 17, and also by building x86_64-mingw32
and DJGPP/go32 -hosted gdbs.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* ser-base.c (ser_base_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
* ser-base.h (ser_base_write): Adjust.
* ser-go32.c (cnts): Change type to size_t.
(dos_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
(dos_info): Print elements of 'cnts' as unsigned long.
* serial.c (serial_write): Likewise.
* serial.h (serial_write): Adjust.
(struct serial_ops) <write>: Change prototype -- take 'void *'
buffer and size_t size. Adjust.
2013-04-19 17:26:17 +02:00
|
|
|
ser_base_write (struct serial *scb, const void *buf, size_t count)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
serial_write: change prototype to take a void-pointer buffer.
While remote.c works with "char *" buffers most of the time, other
remote targets have binary-ish-er protocols, and choose to use
"unsigned char" throughout, like e.g., remote-mips.c or
remote-m32r-sdi.c. That results in -Wpointer-sign warnings in those
targets, unless we add casts in calls to serial_write. Since
serial_write is only concerned about sending raw host bytes out, and
serial_ops->write_prim already works with "void *"/"size_t", a similar
interface to the "write" or "send" system calls, I find it natural to
change serial_write's prototype accordingly, avoiding the need for
casts.
Tested on x86_64 Fedora 17, and also by building x86_64-mingw32
and DJGPP/go32 -hosted gdbs.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* ser-base.c (ser_base_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
* ser-base.h (ser_base_write): Adjust.
* ser-go32.c (cnts): Change type to size_t.
(dos_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
(dos_info): Print elements of 'cnts' as unsigned long.
* serial.c (serial_write): Likewise.
* serial.h (serial_write): Adjust.
(struct serial_ops) <write>: Change prototype -- take 'void *'
buffer and size_t size. Adjust.
2013-04-19 17:26:17 +02:00
|
|
|
const char *str = buf;
|
2005-03-25 20:47:23 +01:00
|
|
|
int cc;
|
|
|
|
|
|
serial_write: change prototype to take a void-pointer buffer.
While remote.c works with "char *" buffers most of the time, other
remote targets have binary-ish-er protocols, and choose to use
"unsigned char" throughout, like e.g., remote-mips.c or
remote-m32r-sdi.c. That results in -Wpointer-sign warnings in those
targets, unless we add casts in calls to serial_write. Since
serial_write is only concerned about sending raw host bytes out, and
serial_ops->write_prim already works with "void *"/"size_t", a similar
interface to the "write" or "send" system calls, I find it natural to
change serial_write's prototype accordingly, avoiding the need for
casts.
Tested on x86_64 Fedora 17, and also by building x86_64-mingw32
and DJGPP/go32 -hosted gdbs.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* ser-base.c (ser_base_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
* ser-base.h (ser_base_write): Adjust.
* ser-go32.c (cnts): Change type to size_t.
(dos_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
(dos_info): Print elements of 'cnts' as unsigned long.
* serial.c (serial_write): Likewise.
* serial.h (serial_write): Adjust.
(struct serial_ops) <write>: Change prototype -- take 'void *'
buffer and size_t size. Adjust.
2013-04-19 17:26:17 +02:00
|
|
|
while (count > 0)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
serial_write: change prototype to take a void-pointer buffer.
While remote.c works with "char *" buffers most of the time, other
remote targets have binary-ish-er protocols, and choose to use
"unsigned char" throughout, like e.g., remote-mips.c or
remote-m32r-sdi.c. That results in -Wpointer-sign warnings in those
targets, unless we add casts in calls to serial_write. Since
serial_write is only concerned about sending raw host bytes out, and
serial_ops->write_prim already works with "void *"/"size_t", a similar
interface to the "write" or "send" system calls, I find it natural to
change serial_write's prototype accordingly, avoiding the need for
casts.
Tested on x86_64 Fedora 17, and also by building x86_64-mingw32
and DJGPP/go32 -hosted gdbs.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* ser-base.c (ser_base_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
* ser-base.h (ser_base_write): Adjust.
* ser-go32.c (cnts): Change type to size_t.
(dos_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
(dos_info): Print elements of 'cnts' as unsigned long.
* serial.c (serial_write): Likewise.
* serial.h (serial_write): Adjust.
(struct serial_ops) <write>: Change prototype -- take 'void *'
buffer and size_t size. Adjust.
2013-04-19 17:26:17 +02:00
|
|
|
cc = scb->ops->write_prim (scb, str, count);
|
2005-03-25 20:47:23 +01:00
|
|
|
|
|
|
|
|
if (cc < 0)
|
|
|
|
|
return 1;
|
serial_write: change prototype to take a void-pointer buffer.
While remote.c works with "char *" buffers most of the time, other
remote targets have binary-ish-er protocols, and choose to use
"unsigned char" throughout, like e.g., remote-mips.c or
remote-m32r-sdi.c. That results in -Wpointer-sign warnings in those
targets, unless we add casts in calls to serial_write. Since
serial_write is only concerned about sending raw host bytes out, and
serial_ops->write_prim already works with "void *"/"size_t", a similar
interface to the "write" or "send" system calls, I find it natural to
change serial_write's prototype accordingly, avoiding the need for
casts.
Tested on x86_64 Fedora 17, and also by building x86_64-mingw32
and DJGPP/go32 -hosted gdbs.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* ser-base.c (ser_base_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
* ser-base.h (ser_base_write): Adjust.
* ser-go32.c (cnts): Change type to size_t.
(dos_write): Change prototype -- take 'void *'
buffer and size_t size. Adjust.
(dos_info): Print elements of 'cnts' as unsigned long.
* serial.c (serial_write): Likewise.
* serial.h (serial_write): Adjust.
(struct serial_ops) <write>: Change prototype -- take 'void *'
buffer and size_t size. Adjust.
2013-04-19 17:26:17 +02:00
|
|
|
count -= cc;
|
2005-03-25 20:47:23 +01:00
|
|
|
str += cc;
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_flush_output (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_flush_input (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
if (scb->bufcnt >= 0)
|
|
|
|
|
{
|
|
|
|
|
scb->bufcnt = 0;
|
|
|
|
|
scb->bufp = scb->buf;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
return SERIAL_ERROR;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_send_break (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_drain_output (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_raw (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
return; /* Always in raw mode. */
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
serial_ttystate
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_get_tty_state (struct serial *scb)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
/* Allocate a dummy. */
|
2013-12-28 23:31:23 +01:00
|
|
|
return (serial_ttystate) XNEW (int);
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
2011-03-04 20:23:42 +01:00
|
|
|
serial_ttystate
|
|
|
|
|
ser_base_copy_tty_state (struct serial *scb, serial_ttystate ttystate)
|
|
|
|
|
{
|
|
|
|
|
/* Allocate another dummy. */
|
2013-12-28 23:31:23 +01:00
|
|
|
return (serial_ttystate) XNEW (int);
|
2011-03-04 20:23:42 +01:00
|
|
|
}
|
|
|
|
|
|
2005-03-25 20:47:23 +01:00
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_set_tty_state (struct serial *scb, serial_ttystate ttystate)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_noflush_set_tty_state (struct serial *scb,
|
|
|
|
|
serial_ttystate new_ttystate,
|
|
|
|
|
serial_ttystate old_ttystate)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_print_tty_state (struct serial *scb,
|
|
|
|
|
serial_ttystate ttystate,
|
|
|
|
|
struct ui_file *stream)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
|
|
|
|
/* Nothing to print. */
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_setbaudrate (struct serial *scb, int rate)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
return 0; /* Never fails! */
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_setstopbits (struct serial *scb, int num)
|
2005-03-25 20:47:23 +01:00
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
return 0; /* Never fails! */
|
2005-03-25 20:47:23 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Put the SERIAL device into/out-of ASYNC mode. */
|
|
|
|
|
|
|
|
|
|
void
|
2005-03-25 21:06:36 +01:00
|
|
|
ser_base_async (struct serial *scb,
|
2005-03-25 20:47:23 +01:00
|
|
|
int async_p)
|
|
|
|
|
{
|
|
|
|
|
if (async_p)
|
|
|
|
|
{
|
2011-01-11 22:53:25 +01:00
|
|
|
/* Force a re-schedule. */
|
2005-03-25 20:47:23 +01:00
|
|
|
scb->async_state = NOTHING_SCHEDULED;
|
|
|
|
|
if (serial_debug_p (scb))
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->asynchronous]\n",
|
|
|
|
|
scb->fd);
|
|
|
|
|
reschedule (scb);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (serial_debug_p (scb))
|
|
|
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->synchronous]\n",
|
|
|
|
|
scb->fd);
|
2011-01-11 22:53:25 +01:00
|
|
|
/* De-schedule whatever tasks are currently scheduled. */
|
2005-03-25 20:47:23 +01:00
|
|
|
switch (scb->async_state)
|
|
|
|
|
{
|
|
|
|
|
case FD_SCHEDULED:
|
|
|
|
|
delete_file_handler (scb->fd);
|
|
|
|
|
break;
|
|
|
|
|
case NOTHING_SCHEDULED:
|
|
|
|
|
break;
|
|
|
|
|
default: /* TIMER SCHEDULED */
|
|
|
|
|
delete_timer (scb->async_state);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|