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Reflect latest interface changes; return 0 on success and -1 on error.

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This commit is contained in:
Martin Baulig
1999-11-21 16:54:36 +00:00
parent cdc8e43a79
commit 81176f8181
20 changed files with 158 additions and 53 deletions
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32
sysdeps/linux/swap.c
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@@ -41,6 +41,8 @@ glibtop_init_swap_s (glibtop *server)
{
server->sysdeps.swap = _glibtop_sysdeps_swap |
_glibtop_sysdeps_swap_paging;
return 0;
}
/* Provides information about swap usage. */
@@ -59,12 +61,17 @@ glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
memset (buf, 0, sizeof (glibtop_swap));
fd = open (MEMINFO, O_RDONLY);
if (fd < 0)
glibtop_error_io_r (server, "open (%s)", MEMINFO);
if (fd < 0) {
glibtop_warn_io_r (server, "open (%s)", MEMINFO);
return -1;
}
len = read (fd, buffer, BUFSIZ-1);
if (len < 0)
glibtop_error_io_r (server, "read (%s)", MEMINFO);
if (len < 0) {
close (fd);
glibtop_warn_io_r (server, "read (%s)", MEMINFO);
return -1;
}
close (fd);
@@ -81,19 +88,24 @@ glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
buf->flags = _glibtop_sysdeps_swap;
fd = open (PROC_STAT, O_RDONLY);
if (fd < 0)
glibtop_error_io_r (server, "open (%s)", PROC_STAT);
if (fd < 0) {
glibtop_warn_io_r (server, "open (%s)", PROC_STAT);
return -1;
}
len = read (fd, buffer, BUFSIZ-1);
if (len < 0)
glibtop_error_io_r (server, "read (%s)", PROC_STAT);
if (len < 0) {
close (fd);
glibtop_warn_io_r (server, "read (%s)", PROC_STAT);
return -1;
}
close (fd);
buffer [len] = '\0';
p = strstr (buffer, "\nswap");
if (p == NULL) return;
if (p == NULL) return 0;
p = skip_token (p);
@@ -101,4 +113,6 @@ glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
buf->pageout = strtoul (p, &p, 0);
buf->flags |= _glibtop_sysdeps_swap_paging;
return 0;
}