Linux下进程间通信FIFO演示程序

/* *将从FIFO收到到数据（字符）转换为大写，并输出到屏幕 */ #include "common.h" int main() { int ret; int fd; char buffer; int nread; int i; /*建立FIFO*/ ret = mkfifo(FIFO_PATH, 0777); /*打开FIFO*/ fd = open(FIFO_PATH, O_RDONLY); if(-1 == fd) { printf("error\n"); return -1; } while(1) { nread = read(fd, &buffer, 1); if(nread > 0) { buffer = toupper(buffer); printf("%c", buffer); } } }