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optmize Port queries

This commit is contained in:
Doug MacEachern 2008-06-01 03:39:25 +00:00
parent af9b092b88
commit 75f4843c1d
1 changed files with 32 additions and 25 deletions
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57
src/sigar_ptql.c
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@ -668,6 +668,8 @@ enum {
PTQL_PID_PID,
PTQL_PID_FILE,
PTQL_PID_SUDO_FILE,
PTQL_PID_TCP_PORT,
PTQL_PID_UDP_PORT,
PTQL_PID_SERVICE_NAME,
PTQL_PID_SERVICE_DISPLAY,
PTQL_PID_SERVICE_PATH,
@ -943,6 +945,23 @@ int sigar_services_query(char *ptql,
}
#endif
static int ptql_pid_port_get(sigar_t *sigar,
ptql_branch_t *branch,
sigar_pid_t *pid)
{
unsigned long port =
branch->data.ui32;
int status;
int proto =
branch->flags == PTQL_PID_UDP_PORT ?
SIGAR_NETCONN_UDP : SIGAR_NETCONN_TCP;
status =
sigar_proc_port_get(sigar, proto, port, pid);
return status;
}
static int ptql_pid_get(sigar_t *sigar,
ptql_branch_t *branch,
sigar_pid_t *pid)
@ -984,6 +1003,14 @@ static int ptql_pid_get(sigar_t *sigar,
return SIGAR_ENOTIMPL;
#endif
}
else if ((branch->flags == PTQL_PID_UDP_PORT) ||
(branch->flags == PTQL_PID_TCP_PORT))
{
int status = ptql_pid_port_get(sigar, branch, pid);
if (status != SIGAR_OK) {
return status;
}
}
else {
*pid = branch->data.pid;
}
@ -1177,16 +1204,17 @@ static int ptql_branch_init_port(ptql_parse_branch_t *parsed,
}
if (strEQ(parsed->attr, "tcp")) {
branch->flags = SIGAR_NETCONN_TCP;
branch->flags = PTQL_PID_TCP_PORT;
}
else if (strEQ(parsed->attr, "udp")) {
branch->flags = SIGAR_NETCONN_UDP;
branch->flags = PTQL_PID_TCP_PORT;
}
else {
return ptql_error(error, "Unsupported %s protocol: %s",
parsed->name, parsed->attr);
parsed->name, parsed->attr);
}
branch->op_flags |= PTQL_OP_FLAG_PID;
branch->data.ui32 = strtoul(parsed->value, &ptr, 10);
if (strtonum_failed(parsed->value, ptr)) {
return PTQL_ERRNAN;
@ -1195,27 +1223,6 @@ static int ptql_branch_init_port(ptql_parse_branch_t *parsed,
return SIGAR_OK;
}
static int SIGAPI ptql_port_match(sigar_t *sigar,
sigar_pid_t pid,
void *data)
{
ptql_branch_t *branch =
(ptql_branch_t *)data;
unsigned long port =
branch->data.ui32;
int status;
sigar_pid_t match_pid=0;
status =
sigar_proc_port_get(sigar, branch->flags, port, &match_pid);
if (status != SIGAR_OK) {
return status;
}
return (pid == match_pid) ? SIGAR_OK : !SIGAR_OK;
}
#define PTQL_LOOKUP_ENTRY(cname, member, type) \
(ptql_get_t)sigar_##cname##_get, \
sigar_offsetof(sigar_##cname##_t, member), \
@ -1300,7 +1307,7 @@ static ptql_lookup_t PTQL_Env[] = {
};
static ptql_lookup_t PTQL_Port[] = {
{ NULL, ptql_port_match, 0, 0, PTQL_VALUE_TYPE_ANY, ptql_branch_init_port }
{ NULL, ptql_pid_match, 0, 0, PTQL_VALUE_TYPE_ANY, ptql_branch_init_port }
};
static ptql_lookup_t PTQL_Pid[] = {