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non-blocked disk reading test

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@917 b3059339-0415-0410-9bf9-f77b7e298cf2
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arpi_esp 2001-05-31 11:35:01 +00:00
parent f19318b6c0
commit 458d313a17
1 changed files with 47 additions and 0 deletions
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TOOLS/blocking.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#define BUFFSIZE (32*65536)
unsigned char *buffer[1];
int main(int argc,char* argv[]){
fd_set rfds;
struct timeval tv;
int retval;
int in_fd=0; // stdin
buffer[0]=malloc(BUFFSIZE);
if(argc>1) in_fd=open(argv[1],O_RDONLY|O_NONBLOCK);
while(1){
FD_ZERO(&rfds); FD_SET(in_fd, &rfds);
tv.tv_sec = 1;
tv.tv_usec = 0;
retval = select(in_fd+1, &rfds, NULL, NULL, &tv);
if (retval){
if(FD_ISSET(in_fd, &rfds)){
// we can read input.
int len;
fprintf(stderr,"r");fflush(stderr);
len=read(in_fd,buffer[0],BUFFSIZE);
fprintf(stderr,"(%d)",len);fflush(stderr);
}
} else {
fprintf(stderr,".");fflush(stderr);
}
fprintf(stderr,"\n");fflush(stderr);
}
return 0;
}