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proc-parse: Parse pid's fdinfo entries

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The existing code opens "self" and parses what's in there,
just twist the code a little to accept generic pid.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov
2014-01-30 13:41:53 +04:00
parent 28ec90b20f
commit c18c733b7c
2 changed files with 20 additions and 3 deletions
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21
proc_parse.c
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@@ -880,7 +880,7 @@ static void parse_fhandle_encoded(char *tok, FhEntry *fh)
#define fdinfo_field(str, field) !strncmp(str, field":", sizeof(field))
int parse_fdinfo(int fd, int type,
static int parse_fdinfo_pid_s(char *pid, int fd, int type,
int (*cb)(union fdinfo_entries *e, void *arg), void *arg)
{
FILE *f;
@@ -888,10 +888,10 @@ int parse_fdinfo(int fd, int type,
bool entry_met = false;
int ret = -1;
sprintf(str, "/proc/self/fdinfo/%d", fd);
sprintf(str, "/proc/%s/fdinfo/%d", pid, fd);
f = fopen(str, "r");
if (!f) {
pr_perror("Can't open fdinfo to parse");
pr_perror("Can't open %s to parse", str);
return -1;
}
@@ -1084,6 +1084,21 @@ out:
return ret;
}
int parse_fdinfo_pid(int pid, int fd, int type,
int (*cb)(union fdinfo_entries *e, void *arg), void *arg)
{
char pid_s[10];
sprintf(pid_s, "%d", pid);
return parse_fdinfo_pid_s(pid_s, fd, type, cb, arg);
}
int parse_fdinfo(int fd, int type,
int (*cb)(union fdinfo_entries *e, void *arg), void *arg)
{
return parse_fdinfo_pid_s("self", fd, type, cb, arg);
}
static int parse_file_lock_buf(char *buf, struct file_lock *fl,
bool is_blocked)
{