diff options
Diffstat (limited to 'src/posix-thread.c')
| -rw-r--r-- | src/posix-thread.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/posix-thread.c b/src/posix-thread.c index 270dc91..00a43e2 100644 --- a/src/posix-thread.c +++ b/src/posix-thread.c @@ -43,18 +43,44 @@ #include "thread.h" +/* + * Functions called before and after blocking syscalls. + * gpgrt_set_syscall_clamp is used to set them. + */ +static void (*pre_syscall_func)(void); +static void (*post_syscall_func)(void); + + +/* Helper to set the clamp functions. This is called as a helper from + * _gpgrt_set_syscall_clamp to keep the function pointers local. */ +void +_gpgrt_thread_set_syscall_clamp (void (*pre)(void), void (*post)(void)) +{ + pre_syscall_func = pre; + post_syscall_func = post; +} + + gpg_err_code_t _gpgrt_yield (void) { #if USE_POSIX_THREADS # ifdef _POSIX_PRIORITY_SCHEDULING + if (pre_syscall_func) + pre_syscall_func (); sched_yield (); + if (post_syscall_func) + post_syscall_func (); # else return GPG_ERR_NOT_SUPPORTED; # endif #elif USE_SOLARIS_THREADS + if (pre_syscall_func) + pre_syscall_func (); thr_yield (); + if (post_syscall_func) + post_syscall_func (); #else return GPG_ERR_NOT_SUPPORTED; #endif |