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fillin proc_exe on solaris 10 using new /proc/<pid>/path/ feature

This commit is contained in:
Doug MacEachern 2004-09-04 22:46:08 +00:00
parent 42f7549b49
commit 6876eeabd3
1 changed files with 41 additions and 7 deletions
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48
src/os/solaris/solaris_sigar.c
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@ -411,6 +411,18 @@ int sigar_loadavg_get(sigar_t *sigar,
return SIGAR_ENOTIMPL; \
}
static char *proc_readlink(const char *name, char *buffer, size_t size)
{
int len;
if ((len = readlink(name, buffer, size-1)) < 0) {
return NULL;
}
buffer[len] = '\0';
return buffer;
}
static int sigar_init_libproc(sigar_t *sigar)
{
if (sigar->plib) {
@ -437,7 +449,6 @@ static int sigar_init_libproc(sigar_t *sigar)
CHECK_PSYM(pgrab);
CHECK_PSYM(pfree);
CHECK_PSYM(pobjname);
/* CHECK_PSYM(pdirname); not in solaris 10 */
return SIGAR_OK;
}
@ -785,6 +796,30 @@ int sigar_proc_fd_get(sigar_t *sigar, sigar_pid_t pid,
return status;
}
static int sigar_proc_path_exe_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_exe_t *procexe)
{
/* solaris 10+ */
char buffer[BUFSIZ];
(void)SIGAR_PROC_FILENAME(buffer, pid, "/path/a.out");
if (!proc_readlink(buffer, procexe->name, sizeof(procexe->name))) {
procexe->name[0] = '\0';
}
(void)SIGAR_PROC_FILENAME(buffer, pid, "/path/cwd");
if (!proc_readlink(buffer, procexe->cwd, sizeof(procexe->cwd))) {
procexe->cwd[0] = '\0';
}
(void)SIGAR_PROC_FILENAME(buffer, pid, "/path/root");
if (!proc_readlink(buffer, procexe->root, sizeof(procexe->root))) {
procexe->root[0] = '\0';
}
return SIGAR_OK;
}
int sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_exe_t *procexe)
{
@ -796,6 +831,11 @@ int sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
return status;
}
if (!sigar->pdirname) {
/* XXX detect solaris 10+ and skip init_libproc */
return sigar_proc_path_exe_get(sigar, pid, procexe);
}
procexe->name[0] = '\0';
/* Pgrab would return G_SELF error */
@ -819,12 +859,6 @@ int sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
/*XXX*/
}
if (!sigar->pdirname) {
/* XXX not in solaris 10 */
procexe->cwd[0] = procexe->root[0] = '\0';
return SIGAR_OK;
}
(void)SIGAR_PROC_FILENAME(buffer, pid, "/cwd");
if (!sigar->pdirname(buffer, procexe->cwd, sizeof(procexe->cwd))) {