Code Sample API6 /* cnaiapi_init.c - cnaiapi_init */ #include <cnaiapi.h> #include <stdio.h> #if defined(LINUX) || defined(SOLARIS) pthread_mutex_t await_contact_mutex = PTHREAD_MUTEX_INITIALIZER; pthread_mutex_t cname_mutex = PTHREAD_MUTEX_INITIALIZER; pthread_mutex_t appname_mutex = PTHREAD_MUTEX_INITIALIZER; #elif defined(WIN32) HANDLE await_contact_mutex; HANDLE cname_mutex; HANDLE appname_mutex; #endif int init = 0; /*----------------------------------------------------------------------- * cnaiapi_init - initialize the library. Initialize Winsock (if Win32) * and create mutexes. * * Note: All CNAIAPI functions call cnaiapi_init first to ensure that * the library is initialized. This is done for ease-of-use for * beginners. * * ** * ** Having the functions call cnaiapi_init first creates * ** a race condition in multi-threaded applications. * ** If your application is multithreaded, call cnaiapi_init explicitly * ** before you spawn any threads. * ** * *----------------------------------------------------------------------- */ void cnaiapi_init(void) { #if defined(WIN32) WORD wsavers; WSADATA wsadata; #endif if (init != 0) return; #if defined(WIN32) wsavers = MAKEWORD(1, 1); if (WSAStartup(wsavers, &wsadata) != 0) { (void) fprintf(stderr, "WSAStartup failed.\n"); exit(1); } await_contact_mutex = CreateMutex(NULL, FALSE, NULL); cname_mutex = CreateMutex(NULL, FALSE, NULL); appname_mutex = CreateMutex(NULL, FALSE, NULL); #endif init = 1; } Item information Caption: Code sample: API6 Type: code sample Item: Code sample API6 without caption Keywords: Java, applet