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TheRock/compiler/amd-llvm/compiler-rt/test/sanitizer_common/TestCases/Linux/sysmsg.c
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

40 lines
948 B
C

// RUN: %clang -O1 %s -o %t && %run %t
// UNSUPPORTED: android
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/msg.h>
#define CHECK_STRING "hello, world!"
#define MSG_BUFLEN 0x100
int main() {
int msgq = msgget(IPC_PRIVATE, 0666);
if (msgq == -1) perror("msgget:");
assert(msgq != -1);
struct msg_s {
long mtype;
char string[MSG_BUFLEN];
};
struct msg_s msg = {
.mtype = 1};
strcpy(msg.string, CHECK_STRING);
int res = msgsnd(msgq, &msg, MSG_BUFLEN, IPC_NOWAIT);
if (res) {
fprintf(stderr, "Error sending message! %s\n", strerror(errno));
msgctl(msgq, IPC_RMID, NULL);
return -1;
}
struct msg_s rcv_msg;
ssize_t len = msgrcv(msgq, &rcv_msg, MSG_BUFLEN, msg.mtype, IPC_NOWAIT);
assert(len == MSG_BUFLEN);
assert(msg.mtype == rcv_msg.mtype);
assert(!memcmp(msg.string, rcv_msg.string, MSG_BUFLEN));
msgctl(msgq, IPC_RMID, NULL);
return 0;
}