70. {
71. perror( “thread2 sem_wait n” );
72. }
73.
74. if( g_Flag == 1 )
75. sem_post( &sem_syn );
76.
77. g_Flag = 2;
78.
79. if( sem_post( &sem_mutex ) != 0)
80. {
81. perror( “ thread2 sem_postn” );
82. }
83. printf( “ thread2 id: %u , g_Flag: %d n”, ( unsigned int )pthread_self(), g_Flag );
84. printf( “Leave thread2 nn” );
85.
86. pthread_exit(0);
87.}
责任编辑:ct
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