Add support for epoll

[c11tester.git] / threads.cc

diff --git a/threads.cc b/threads.cc
index e22ffa3221f83ae1f95abb5b7b6c63da04c72183..faa49fc5707454bb105b384d1f4482bd418fb711 100644 (file)
--- a/threads.cc
+++ b/threads.cc
@@ -16,8 +16,9 @@
 #include "schedule.h"
 #include "clockvector.h"
 
-#ifdef TLS
 #include <dlfcn.h>
+
+#ifdef TLS
 uintptr_t get_tls_addr() {
        uintptr_t addr;
        asm ("mov %%fs:0, %0" : "=r" (addr));
@@ -110,6 +111,13 @@ void thread_startup()
 #endif
 }
 
+
+static int (*real_epoll_wait_p)(int epfd, struct epoll_event *events, int maxevents, int timeout) = NULL;
+
+int real_epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout) {
+       return real_epoll_wait_p(epfd, events, maxevents, timeout);
+}
+
 static int (*pthread_mutex_init_p)(pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr) = NULL;
 
 int real_pthread_mutex_init(pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr) {
@@ -148,6 +156,13 @@ void real_pthread_exit (void * value_ptr) {
 
 void real_init_all() {
        char * error;
+       if (!real_epoll_wait_p) {
+               real_epoll_wait_p = (int (*)(int epfd, struct epoll_event *events, int maxevents, int timeout))dlsym(RTLD_NEXT, "epoll_wait");
+               if ((error = dlerror()) != NULL) {
+                       fputs(error, stderr);
+                       exit(EXIT_FAILURE);
+               }
+       }
        if (!pthread_mutex_init_p) {
                pthread_mutex_init_p = (int (*)(pthread_mutex_t *__mutex, const pthread_mutexattr_t *__mutexattr))dlsym(RTLD_NEXT, "pthread_mutex_init");
                if ((error = dlerror()) != NULL) {