Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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/* Self tests for ptid_t for GDB, the GNU debugger.
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Copyright (C) 2017 Free Software Foundation, Inc.
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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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the Free Software Foundation; either version 3 of the License, or
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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "common/ptid.h"
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#include <type_traits>
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namespace selftests {
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namespace ptid {
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/* Check that the ptid_t class is POD.
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This is a requirement for as long as we have ptids embedded in
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structures allocated with malloc. */
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static_assert (std::is_pod<ptid_t>::value, "ptid_t is POD");
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/* We want to avoid implicit conversion from int to ptid_t. */
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static_assert (!std::is_convertible<int, ptid_t>::value,
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"constructor is explicit");
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/* Build some useful ptids. */
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static constexpr ptid_t pid = ptid_t (1);
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static constexpr ptid_t lwp = ptid_t (1, 2, 0);
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static constexpr ptid_t tid = ptid_t (1, 0, 2);
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static constexpr ptid_t both = ptid_t (1, 2, 2);
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/* Build some constexpr version of null_ptid and minus_one_ptid to use in
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static_assert. Once the real ones are made constexpr, we can get rid of
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these. */
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static constexpr ptid_t null = ptid_t::make_null ();
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static constexpr ptid_t minus_one = ptid_t::make_minus_one ();
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/* Verify pid. */
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static_assert (pid.pid () == 1, "pid's pid is right");
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static_assert (lwp.pid () == 1, "lwp's pid is right");
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static_assert (tid.pid () == 1, "tid's pid is right");
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static_assert (both.pid () == 1, "both's pid is right");
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/* Verify lwp_p. */
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static_assert (!pid.lwp_p (), "pid's lwp_p is right");
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static_assert (lwp.lwp_p (), "lwp's lwp_p is right");
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static_assert (!tid.lwp_p (), "tid's lwp_p is right");
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static_assert (both.lwp_p (), "both's lwp_p is right");
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/* Verify lwp. */
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static_assert (pid.lwp () == 0, "pid's lwp is right");
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static_assert (lwp.lwp () == 2, "lwp's lwp is right");
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static_assert (tid.lwp () == 0, "tid's lwp is right");
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static_assert (both.lwp () == 2, "both's lwp is right");
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/* Verify tid_p. */
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static_assert (!pid.tid_p (), "pid's tid_p is right");
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static_assert (!lwp.tid_p (), "lwp's tid_p is right");
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static_assert (tid.tid_p (), "tid's tid_p is right");
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static_assert (both.tid_p (), "both's tid_p is right");
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/* Verify tid. */
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static_assert (pid.tid () == 0, "pid's tid is right");
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static_assert (lwp.tid () == 0, "lwp's tid is right");
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static_assert (tid.tid () == 2, "tid's tid is right");
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static_assert (both.tid () == 2, "both's tid is right");
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/* Verify is_pid. */
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static_assert (pid.is_pid (), "pid is a pid");
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static_assert (!lwp.is_pid (), "lwp isn't a pid");
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static_assert (!tid.is_pid (), "tid isn't a pid");
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static_assert (!both.is_pid (), "both isn't a pid");
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static_assert (!null.is_pid (), "null ptid isn't a pid");
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static_assert (!minus_one.is_pid (), "minus one ptid isn't a pid");
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/* Verify operator ==. */
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static_assert (pid == ptid_t (1, 0, 0), "pid operator== is right");
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static_assert (lwp == ptid_t (1, 2, 0), "lwp operator== is right");
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static_assert (tid == ptid_t (1, 0, 2), "tid operator== is right");
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static_assert (both == ptid_t (1, 2, 2), "both operator== is right");
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/* Verify operator !=. */
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static_assert (pid != ptid_t (2, 0, 0), "pid isn't equal to a different pid");
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static_assert (pid != lwp, "pid isn't equal to one of its thread");
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static_assert (lwp != tid, "lwp isn't equal to tid");
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static_assert (both != lwp, "both isn't equal to lwp");
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static_assert (both != tid, "both isn't equal to tid");
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/* Verify matches against minus_one. */
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static_assert (pid.matches (minus_one), "pid matches minus one");
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static_assert (lwp.matches (minus_one), "lwp matches minus one");
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static_assert (tid.matches (minus_one), "tid matches minus one");
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static_assert (both.matches (minus_one), "both matches minus one");
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/* Verify matches against pid. */
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static_assert (pid.matches (pid), "pid matches pid");
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static_assert (lwp.matches (pid), "lwp matches pid");
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static_assert (tid.matches (pid), "tid matches pid");
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static_assert (both.matches (pid), "both matches pid");
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static_assert (!ptid_t (2, 0, 0).matches (pid), "other pid doesn't match pid");
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static_assert (!ptid_t (2, 2, 0).matches (pid), "other lwp doesn't match pid");
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static_assert (!ptid_t (2, 0, 2).matches (pid), "other tid doesn't match pid");
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static_assert (!ptid_t (2, 2, 2).matches (pid), "other both doesn't match pid");
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/* Verify matches against exact matches. */
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2017-04-07 16:27:48 +02:00
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static_assert (!pid.matches (lwp), "pid doesn't match lwp");
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Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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static_assert (lwp.matches (lwp), "lwp matches lwp");
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2017-04-07 16:27:48 +02:00
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static_assert (!tid.matches (lwp), "tid doesn't match lwp");
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static_assert (!both.matches (lwp), "both doesn't match lwp");
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Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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static_assert (!ptid_t (2, 2, 0).matches (lwp), "other lwp doesn't match lwp");
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2017-04-07 16:27:48 +02:00
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static_assert (!pid.matches (tid), "pid doesn't match tid");
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static_assert (!lwp.matches (tid), "lwp doesn't match tid");
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Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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static_assert (tid.matches (tid), "tid matches tid");
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2017-04-07 16:27:48 +02:00
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static_assert (!both.matches (tid), "both doesn't match tid");
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Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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static_assert (!ptid_t (2, 0, 2).matches (tid), "other tid doesn't match tid");
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2017-04-07 16:27:48 +02:00
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static_assert (!pid.matches (both), "pid doesn't match both");
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static_assert (!lwp.matches (both), "lwp doesn't match both");
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static_assert (!tid.matches (both), "tid doesn't match both");
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Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class. The fields are now
private, so it's not possible to change a ptid_t field by mistake.
The new methods of ptid_t map to existing functions/practice like this:
ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
ptid_t (pid) -> pid_to_ptid (pid)
ptid.is_pid () -> ptid_is_pid (ptid)
ptid == other -> ptid_equal (ptid, other)
ptid != other -> !ptid_equal (ptid, other)
ptid.pid () -> ptid_get_pid (ptid)
ptid.lwp_p () -> ptid_lwp_p (ptid)
ptid.lwp () -> ptid_get_lwp (ptid)
ptid.tid_p () -> ptid_tid_p (ptid)
ptid.tid () -> ptid_get_tid (ptid)
ptid.matches (filter) -> ptid_match (ptid, filter)
I've replaced the implementation of the existing functions with calls to
the new methods. People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).
Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.
gdb/ChangeLog:
* common/ptid.h (struct ptid): Change to...
(class ptid_t): ... this.
<ptid_t>: New constructors.
<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
matches>: New methods.
<make_null, make_minus_one>: New static methods.
<pid>: Rename to...
<m_pid>: ...this.
<lwp>: Rename to...
<m_lwp>: ...this.
<tid>: Rename to...
<m_tid>: ...this.
(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
as references, move comment to class ptid_t.
* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
ptid_t static methods.
(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
Take ptid arguments as references, implement using ptid_t methods.
* unittests/ptid-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
unittests/ptid-selftests.c.
(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.
gdb/gdbserver/ChangeLog:
* server.c (handle_v_cont): Initialize thread_resume::thread
with null_ptid.
2017-04-07 05:29:53 +02:00
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static_assert (both.matches (both), "both matches both");
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static_assert (!ptid_t (2, 2, 2).matches (both),
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"other both doesn't match both");
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} /* namespace ptid */
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} /* namespace selftests */
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