Created
February 7, 2010 08:09
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Simple preforking server
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#include <stdio.h> | |
#include <stdlib.h> | |
#include <sys/types.h> | |
#include <sys/socket.h> | |
#include <netinet/in.h> | |
int main(int argc, char *argv[]) { | |
struct sockaddr_in addr; | |
int listenSocket, newSocket; | |
char buffer[25]; | |
int result, i, value, pid, nChildren = 1, nRead; | |
if (argc > 1) { | |
nChildren = atoi(argv[1]); | |
} | |
listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); | |
value = 1; | |
result = setsockopt(listenSocket, SOL_SOCKET, SO_REUSEADDR, &value, sizeof(value)); | |
if (result < 0) { | |
perror("perforking"); | |
return 0; | |
} | |
addr.sin_family = AF_INET; | |
addr.sin_port = htons(1972); | |
addr.sin_addr.s_addr = INADDR_ANY; | |
result = bind(listenSocket, (struct sockaddr *) &addr, sizeof(addr)); | |
if (result < 0) { | |
perror("perforking"); | |
return 0; | |
} | |
result = listen(listenSocket, 5); | |
if (result < 0) { | |
perror("perforking"); | |
return 0; | |
} | |
for (i = 0; i < nChildren; i++) { | |
if ((pid = fork()) == 0) { | |
while(1) { | |
newSocket = accept(listenSocket, NULL, NULL); | |
printf("Client connected to the child process %i\n", getpid()); | |
nRead = recv(newSocket, buffer, 25, 0); | |
buffer[nRead] = '\0'; | |
send(newSocket, buffer, nRead, 0); | |
close(newSocket); | |
printf("Client disconnected from child process %i\n", getpid()); | |
} | |
} | |
} | |
wait(NULL); | |
} |
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