char buf[4096];
int fd_in = -1, fd_out;
int res;
- int flag;
+ int flag,flag2;
int count = 1;
struct timeval tv={.tv_sec=5,.tv_usec=0};
- while (count < 100000) {
+ while (count < 1000000) {
fd_set readSet;
int res;
int nlines=0;
//usleep(200);
printf("(%d)", count);fflush(stdout);
-
if ((fd_out = open(topcmd, O_RDONLY | O_NONBLOCK)) < 0) {
fprintf(stderr, "error executing top\n");
exit(-1);
}
- printf("Opening...\n");
- if ((fd_in = open(top_in_file, O_WRONLY)) < 0) {
- fprintf(stderr, "error opening %s\n", top_in_file);
- exit(-1);
+ //printf("((0))");fflush(stdout);
+ while ((fd_in = open(top_in_file, O_WRONLY| O_NONBLOCK)) < 0) {
+ fprintf(stderr, "Waiting for %s (%s)\n", top_in_file,strerror(errno));
+ usleep (50);
}
- printf("Open.\n");
+ //printf("(1)");
if ((flag = fcntl(fd_out, F_GETFL)) == -1) {
printf("fcntl get failed\n");
exit(-1);
}
+ //printf("(2)");
+
+ //printf("(3)");
+ if ((flag2 = fcntl(fd_in, F_GETFL)) == -1) {
+ printf("fcntl get failed\n");
+ exit(-1);
+ }
+ //printf("(4)");
+
while (1) {
FD_ZERO(&readSet);
FD_SET(fd_out, &readSet);
- printf("Selecting...\n");
+ //printf("(5)");
res = select(fd_out + 1, &readSet, NULL, NULL, NULL);
- printf("Selected...\n");
+ //printf("(6)");
if (res < 0) {
if (errno == EINTR || errno == EAGAIN) {
printf(".");
break; /* we're done */
}
+ //printf("(7)");
if (fcntl(fd_out, F_SETFL, flag & ~O_NONBLOCK) == -1) {
printf("fcntl set failed\n");
exit(-1);
}
+ //printf("(8)");
+ //printf("(9)");
if ((flag = fcntl(fd_out, F_GETFL)) == -1) {
printf("fcntl get failed\n");
exit(-1);
}
+ //printf("(10)");
+
+
+ //printf("(11)");
+ if (fcntl(fd_in, F_SETFL, flag2 & ~O_NONBLOCK) == -1) {
+ printf("fcntl set failed\n");
+ exit(-1);
+ }
+
+ //printf("(11)");
+ if ((flag2 = fcntl(fd_in, F_GETFL)) == -1) {
+ printf("fcntl get failed\n");
+ exit(-1);
+ }
+ //printf("(12)");
if (flag & O_NONBLOCK == 0) {
printf("fd_out still nonblocking\n");
exit(-1);
}
+ if (flag & O_NONBLOCK == 0) {
+ printf("fd_in still nonblocking\n");
+ exit(-1);
+ }
if ((fp = fdopen(fd_out, "r")) == NULL) {
printf("fdopen failed\n");
exit(-1);