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Code Issues Releases Wiki Activity

Refine zero copy research

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This commit is contained in:
winlin 2020-04-20 08:02:53 +08:00
parent 2e9a561acf
commit 8f9cc38f68
2 changed files with 28 additions and 18 deletions
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23
trunk/research/msg_zerocopy/client.cpp
View file

@ -9,13 +9,18 @@
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
if (argc < 3) { if (argc < 4) {
printf("Usage: %s <host> <port>\n", argv[0]); printf("Usage: %s <host> <port> <pong>\n", argv[0]);
printf("For example:\n"); printf("For example:\n");
printf(" %s 127.0.0.1 8000\n", argv[0]); printf(" %s 127.0.0.1 8000 true\n", argv[0]);
exit(-1); exit(-1);
} }
int port = atoi(argv[2]);
char* host = argv[1];
bool pong = !strcmp(argv[3], "pong");
printf("Server listen %s:%d, pong %d\n", host, port, pong);
assert(!st_set_eventsys(ST_EVENTSYS_ALT)); assert(!st_set_eventsys(ST_EVENTSYS_ALT));
assert(!st_init()); assert(!st_init());
@ -28,8 +33,6 @@ int main(int argc, char** argv)
sockaddr_in peer; sockaddr_in peer;
memset(&peer, 0, sizeof(sockaddr_in)); memset(&peer, 0, sizeof(sockaddr_in));
int port = atoi(argv[2]);
char* host = argv[1];
peer.sin_family = AF_INET; peer.sin_family = AF_INET;
peer.sin_port = htons(port); peer.sin_port = htons(port);
peer.sin_addr.s_addr = inet_addr(host); peer.sin_addr.s_addr = inet_addr(host);
@ -52,10 +55,12 @@ int main(int argc, char** argv)
int r0 = st_sendmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT); int r0 = st_sendmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT);
printf("Ping %s:%d %d bytes, r0=%d, %s\n", host, port, iov.iov_len, r0, msg.msg_iov->iov_base); printf("Ping %s:%d %d bytes, r0=%d, %s\n", host, port, iov.iov_len, r0, msg.msg_iov->iov_base);
r0 = st_recvmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT); if (pong) {
assert(r0 > 0); r0 = st_recvmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT);
printf("Pong %s:%d %d bytes, flags %#x, %s\n", inet_ntoa(peer.sin_addr), ntohs(peer.sin_port), r0, assert(r0 > 0);
msg.msg_flags, msg.msg_iov->iov_base); printf("Pong %s:%d %d bytes, flags %#x, %s\n", inet_ntoa(peer.sin_addr), ntohs(peer.sin_port), r0,
msg.msg_flags, msg.msg_iov->iov_base);
}
return 0; return 0;
} }

23
trunk/research/msg_zerocopy/server.cpp
View file

@ -9,13 +9,18 @@
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
if (argc < 3) { if (argc < 4) {
printf("Usage: %s <host> <port>\n", argv[0]); printf("Usage: %s <host> <port> <pong>\n", argv[0]);
printf("For example:\n"); printf("For example:\n");
printf(" %s 0.0.0.0 8000\n", argv[0]); printf(" %s 0.0.0.0 8000 true\n", argv[0]);
exit(-1); exit(-1);
} }
int port = atoi(argv[2]);
char* host = argv[1];
bool pong = !strcmp(argv[3], "pong");
printf("Server listen %s:%d, pong %d\n", host, port, pong);
assert(!st_set_eventsys(ST_EVENTSYS_ALT)); assert(!st_set_eventsys(ST_EVENTSYS_ALT));
assert(!st_init()); assert(!st_init());
@ -29,8 +34,6 @@ int main(int argc, char** argv)
sockaddr_in addr; sockaddr_in addr;
memset(&addr, 0, sizeof(sockaddr_in)); memset(&addr, 0, sizeof(sockaddr_in));
int port = atoi(argv[2]);
char* host = argv[1];
addr.sin_family = AF_INET; addr.sin_family = AF_INET;
addr.sin_port = htons(port); addr.sin_port = htons(port);
addr.sin_addr.s_addr = inet_addr(host); addr.sin_addr.s_addr = inet_addr(host);
@ -70,10 +73,12 @@ int main(int argc, char** argv)
memcpy(msg.msg_iov->iov_base, "World", 5); memcpy(msg.msg_iov->iov_base, "World", 5);
msg.msg_iov->iov_len = 5; msg.msg_iov->iov_len = 5;
r0 = st_sendmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT); if (pong) {
assert(r0 > 0); r0 = st_sendmsg(stfd, &msg, 0, ST_UTIME_NO_TIMEOUT);
printf("Pong %s:%d %d bytes, flags %#x, %s\n", inet_ntoa(peer.sin_addr), ntohs(peer.sin_port), r0, assert(r0 > 0);
msg.msg_flags, msg.msg_iov->iov_base); printf("Pong %s:%d %d bytes, flags %#x, %s\n", inet_ntoa(peer.sin_addr), ntohs(peer.sin_port), r0,
msg.msg_flags, msg.msg_iov->iov_base);
}
} }
return 0; return 0;