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https://github.com/ultimatepp/ultimatepp.git
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47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#include <Core/Core.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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using namespace Upp;
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int GetMicroCount()
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{
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struct timeval tv[1];
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gettimeofday(tv, NULL);
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return (dword)tv->tv_sec * 1000000 + tv->tv_usec;
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}
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CONSOLE_APP_MAIN {
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int skt = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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sockaddr_in srvadr;
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srvadr.sin_family = AF_INET;
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srvadr.sin_port = htons(2345);
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srvadr.sin_addr.s_addr = inet_addr("10.0.0.20");
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srvadr.sin_addr.s_addr = inet_addr("127.0.0.1");
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for(int i = 0; i < 100000; i++) {
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char h[512];
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int tm = GetMicroCount();
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char buffer[1000];
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fd_set file_set;
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sendto(skt, &h, 512, 0, (sockaddr *) &srvadr, sizeof(srvadr));
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timeval time_out;
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time_out.tv_sec = 1; /* set to 1 sec */
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time_out.tv_usec = 0;
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FD_ZERO(&file_set);
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FD_SET(skt, &file_set);
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if(select(skt + 1, &file_set, NULL, NULL, &time_out) > 0) {
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recvfrom(skt, buffer, 1000, 0, NULL, NULL);
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Cout() << "PING " << GetMicroCount() - tm << "us\n";
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}
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else
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Cout() << "TIMEOUT\n";
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Sleep(1000);
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}
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}
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