for testing native ptql impl

exp/ptql.c

@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include "sigar.h"
+#include "sigar_ptql.h"
+
+int ptql_test(sigar_t *sigar, char *ptql) {
+    int status, i;
+    sigar_proc_list_t proclist;
+    sigar_ptql_query_t *query;
+
+    status =
+        sigar_proc_list_get(sigar, &proclist);
+
+    if (status != SIGAR_OK) {
+        return status;
+    }
+
+    status =
+        sigar_ptql_query_create(sigar, &query, ptql);
+
+    if (status != SIGAR_OK) {
+        return status;
+    }
+
+    for (i=0; i<proclist.number; i++) {
+        sigar_pid_t pid = proclist.data[i];
+        if (sigar_ptql_query_match(sigar, query, pid) == SIGAR_OK) {
+            sigar_proc_state_t state;
+            sigar_proc_state_get(sigar, pid, &state);
+            printf("name=%s, pid=%d\n", state.name, (int)pid);
+        }
+    }
+
+    sigar_proc_list_destroy(sigar, &proclist);
+
+    sigar_ptql_query_destroy(sigar, query);
+
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    int i;
+    sigar_t *sigar;
+
+    if (sigar_open(&sigar) != SIGAR_OK) {
+        return -1;
+    }
+
+    for (i=0; i<argc; i++) {
+        ptql_test(sigar, argv[i]);
+    }
+
+    sigar_close(sigar);
+
+    return 0;
+}