From d3e8f95753114a827f9cd8e819b1d5cc8333f76b Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Sat, 22 Sep 2012 22:26:19 +0200 Subject: [PATCH] w32: Add implementation of gmtime_r, localtime_r Those functions are missing in MinGW. Some versions of MinGW-w64 include defines for gmtime_r and localtime_r. Older versions of these macros are buggy (they return a pointer to a static variable), therefore we don't want them. Newer versions are similar to the code used here, but without the memset. The implementation which is used here is not strictly reentrant, but sufficiently good for QEMU on w32 or w64. Signed-off-by: Stefan Weil [blauwirbel@gmail.com: added comment about locking] Signed-off-by: Blue Swirl --- oslib-win32.c | 24 ++++++++++++++++++++++++ qemu-os-win32.h | 6 ++++++ 2 files changed, 30 insertions(+) diff --git a/oslib-win32.c b/oslib-win32.c index ffbc6d0c9f..51b33e8b20 100644 --- a/oslib-win32.c +++ b/oslib-win32.c @@ -74,6 +74,30 @@ void qemu_vfree(void *ptr) VirtualFree(ptr, 0, MEM_RELEASE); } +/* FIXME: add proper locking */ +struct tm *gmtime_r(const time_t *timep, struct tm *result) +{ + struct tm *p = gmtime(timep); + memset(result, 0, sizeof(*result)); + if (p) { + *result = *p; + p = result; + } + return p; +} + +/* FIXME: add proper locking */ +struct tm *localtime_r(const time_t *timep, struct tm *result) +{ + struct tm *p = localtime(timep); + memset(result, 0, sizeof(*result)); + if (p) { + *result = *p; + p = result; + } + return p; +} + void socket_set_block(int fd) { unsigned long opt = 0; diff --git a/qemu-os-win32.h b/qemu-os-win32.h index 753679b194..3b5a35b6c2 100644 --- a/qemu-os-win32.h +++ b/qemu-os-win32.h @@ -68,6 +68,12 @@ /* Declaration of ffs() is missing in MinGW's strings.h. */ int ffs(int i); +/* Missing POSIX functions. Don't use MinGW-w64 macros. */ +#undef gmtime_r +struct tm *gmtime_r(const time_t *timep, struct tm *result); +#undef localtime_r +struct tm *localtime_r(const time_t *timep, struct tm *result); + static inline void os_setup_signal_handling(void) {} static inline void os_daemonize(void) {} static inline void os_setup_post(void) {}