Changeset b9dd49a

Timestamp:

03/12/10 13:26:57 (11 years ago)

Author:

Perry Lorier <perry@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, getfragoff, help, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

441f34d

Parents:

66649b4

Message:

Name threads on linux so we can tell them apart.

Location:

lib

Files:

• ior-thread.c (modified) (3 diffs)
• iow-thread.c (modified) (3 diffs)

lib/ior-thread.c

@@ -34 +34 @@
 
 #include "wandio.h"
+#include "config.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -42 +43 @@
 #include <stdbool.h>
 #include <errno.h>
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
 
 /* Libtrace IO module implementing a threaded reader.
@@ -97 +101 @@
         int buffer=0;
         bool running = true;
+        char namebuf[17];
+
+#ifdef PR_SET_NAME
+        if (prctl(PR_GET_NAME, namebuf, 0,0,0) == 0) {
+                namebuf[16] = '\0'; /* Make sure it's NUL terminated */
+                /* If the filename is too long, overwrite the last few bytes */
+                if (strlen(namebuf)>9) {
+                        strcpy(namebuf+10,"[ior]");
+                }
+                else {
+                        strncat(namebuf," [ior]",16);
+                }
+                prctl(PR_SET_NAME, namebuf, 0,0,0);
+        }
+#endif
 
         pthread_mutex_lock(&DATA(state)->mutex);

lib/iow-thread.c

@@ -33 +33 @@
 
 #include "wandio.h"
+#include "config.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -40 +41 @@
 #include <string.h>
 #include <stdbool.h>
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
 
 /* Libtrace IO module implementing a threaded writer.
@@ -95 +99 @@
         int buffer=0;
         bool running = true;
+        char namebuf[17];
         iow_t *state = (iow_t *) userdata;
+
+#ifdef PR_SET_NAME
+        if (prctl(PR_GET_NAME, namebuf, 0,0,0) == 0) {
+                namebuf[16] = '\0'; /* Make sure it's NUL terminated */
+                /* If the filename is too long, overwrite the last few bytes */
+                if (strlen(namebuf)>9) {
+                        strcpy(namebuf+10,"[iow]");
+                }
+                else {
+                        strncat(namebuf," [iow]",16);
+                }
+                prctl(PR_SET_NAME, namebuf, 0,0,0);
+        }
+#endif
 
         pthread_mutex_lock(&DATA(state)->mutex);