diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/thread/pthread/SDL_systhread.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/thread/pthread/SDL_systhread.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/thread/pthread/SDL_systhread.c b/distrib/sdl-1.2.15/src/thread/pthread/SDL_systhread.c new file mode 100644 index 0000000..40cc3b7 --- /dev/null +++ b/distrib/sdl-1.2.15/src/thread/pthread/SDL_systhread.c @@ -0,0 +1,120 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#include <pthread.h> +#include <signal.h> + +#include "SDL_thread.h" +#include "../SDL_thread_c.h" +#include "../SDL_systhread.h" + +/* List of signals to mask in the subthreads */ +static int sig_list[] = { + SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGALRM, SIGTERM, SIGCHLD, SIGWINCH, + SIGVTALRM, SIGPROF, 0 +}; + +#ifdef __RISCOS__ +/* RISC OS needs to know the main thread for + * it's timer and event processing. */ +int riscos_using_threads = 0; +Uint32 riscos_main_thread = 0; /* Thread running events */ +#endif + + +static void *RunThread(void *data) +{ + SDL_RunThread(data); + pthread_exit((void*)0); + return((void *)0); /* Prevent compiler warning */ +} + +int SDL_SYS_CreateThread(SDL_Thread *thread, void *args) +{ + pthread_attr_t type; + + /* Set the thread attributes */ + if ( pthread_attr_init(&type) != 0 ) { + SDL_SetError("Couldn't initialize pthread attributes"); + return(-1); + } + pthread_attr_setdetachstate(&type, PTHREAD_CREATE_JOINABLE); + + /* Create the thread and go! */ + if ( pthread_create(&thread->handle, &type, RunThread, args) != 0 ) { + SDL_SetError("Not enough resources to create thread"); + return(-1); + } + +#ifdef __RISCOS__ + if (riscos_using_threads == 0) { + riscos_using_threads = 1; + riscos_main_thread = SDL_ThreadID(); + } +#endif + + return(0); +} + +void SDL_SYS_SetupThread(void) +{ + int i; + sigset_t mask; + + /* Mask asynchronous signals for this thread */ + sigemptyset(&mask); + for ( i=0; sig_list[i]; ++i ) { + sigaddset(&mask, sig_list[i]); + } + pthread_sigmask(SIG_BLOCK, &mask, 0); + +#ifdef PTHREAD_CANCEL_ASYNCHRONOUS + /* Allow ourselves to be asynchronously cancelled */ + { int oldstate; + pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &oldstate); + } +#endif +} + +/* WARNING: This may not work for systems with 64-bit pid_t */ +Uint32 SDL_ThreadID(void) +{ + return((Uint32)((size_t)pthread_self())); +} + +void SDL_SYS_WaitThread(SDL_Thread *thread) +{ + pthread_join(thread->handle, 0); +} + +void SDL_SYS_KillThread(SDL_Thread *thread) +{ +#ifdef PTHREAD_CANCEL_ASYNCHRONOUS + pthread_cancel(thread->handle); +#else +#ifdef __FREEBSD__ +#warning For some reason, this doesnt actually kill a thread - FreeBSD 3.2 +#endif + pthread_kill(thread->handle, SIGKILL); +#endif +} |