내가 잘못했는지 잘 모르겠지만 메일 슬롯은 421 바이트보다 큰 메시지를 확실히 처리 할 수 있습니다. 여기에 몇 가지 테스트 코드 (즉, 성공적으로 실행)이다 :
서버 :
#include <windows.h>
#include <stdio.h>
int main() {
HANDLE mailslot = CreateMailslot("\\\\.\\mailslot\\myslot",
0,
MAILSLOT_WAIT_FOREVER,
NULL);
if (mailslot == INVALID_HANDLE_VALUE) {
fprintf(stderr, "Unable to create mailslot.");
return 1;
}
char buffer[2048];
OVERLAPPED ovlp = {0};
ovlp.hEvent = CreateEvent(NULL, false, false, NULL);
if (ovlp.hEvent == NULL) {
fprintf(stderr, "Unable to create Event.");
return 2;
}
DWORD read;
do {
ReadFile(mailslot, buffer, sizeof(buffer), &read, &ovlp);
buffer[read] = 0;
WaitForSingleObject(ovlp.hEvent, INFINITE);
printf("%s\n", buffer);
} while (strcmp(buffer, "exit"));
return 0;
}
클라이언트 :
#include <windows.h>
#include <stdio.h>
int main() {
HANDLE mailslot = CreateFile("\\\\.\\mailslot\\myslot",
GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
0,
NULL);
if (INVALID_HANDLE_VALUE == mailslot) {
fprintf(stderr, "Unable to open mailslot.\n");
return 1;
}
char buffer[2048];
DWORD written;
for (int i=0; i<1024; i++)
buffer[i] = 'A' + (i%26);
buffer[1023] = '\0';
size_t len = strlen(buffer);
WriteFile(mailslot, buffer, len, &written, NULL);
WriteFile(mailslot, "exit", 4, &written, NULL);
return 0;
}
결과 :
E:\C\source>mailslot
ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZAB
CDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCD
EFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEF
GHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGH
IJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJ
KLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKL
MNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMN
OPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOP
QRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQR
STUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRST
UVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV
WXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWX
YZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHI
exit
내가 작업중인 클라이언트와 서버가 있습니다. 다음은 클라이언트 코드입니다. http://pastebin.com/iq76EvAN 여기 서버 코드가 있습니다. http://pastebin.com/fy5nCd1t –