frida-glib2: Implement frida's specific threading utilities

[Kamil Rytarowski <n54%gmx.com@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Kamil Rytarowski <n54%gmx.com@localhost>
Pushed By:	kamil
Date:		Tue Mar 13 02:54:19 2018 +0100
Changeset:	4134498c876157c638bdbe423a6246cd2edd9226

Modified Files:
	frida-glib2/distinfo
	frida-glib2/patches/patch-glib_gthread-posix.c

Log Message:
frida-glib2: Implement frida's specific threading utilities

Implement:
 - g_thread_lifetime_beacon_new
 - g_thread_lifetime_beacon_free
 - g_thread_lifetime_beacon_check

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=4134498c876157c638bdbe423a6246cd2edd9226

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 frida-glib2/distinfo                           |  2 +-
 frida-glib2/patches/patch-glib_gthread-posix.c | 83 ++++++++++++++++++++++++++
 2 files changed, 84 insertions(+), 1 deletion(-)

diffs:
diff --git a/frida-glib2/distinfo b/frida-glib2/distinfo
index 3b435a5772..06e209a346 100644
--- a/frida-glib2/distinfo
+++ b/frida-glib2/distinfo
@@ -4,4 +4,4 @@ SHA1 (glib-2.54.3-d8a2acabac5c04d3ca5eb4f0aa050582b8a9c7ac.tar.gz) = 5eae4e940ae
 RMD160 (glib-2.54.3-d8a2acabac5c04d3ca5eb4f0aa050582b8a9c7ac.tar.gz) = b399e316fdbb3f83a88bdd107de721581bed8db7
 SHA512 (glib-2.54.3-d8a2acabac5c04d3ca5eb4f0aa050582b8a9c7ac.tar.gz) = c1f8f2e37a778f77b3e27566e18004c484be7626eaafb644a288ef93f253e48d1c57c88cb03dc0dde001437f6d57d098452ed327b891382b682b6a0aa2e35b46
 Size (glib-2.54.3-d8a2acabac5c04d3ca5eb4f0aa050582b8a9c7ac.tar.gz) = 8068479 bytes
-SHA1 (patch-glib_gthread-posix.c) = b0689e3c6729ef31f0c5e3be75ea7211d4f3023e
+SHA1 (patch-glib_gthread-posix.c) = ffb13535432767a34492c9377a0a056fddbf078c
diff --git a/frida-glib2/patches/patch-glib_gthread-posix.c b/frida-glib2/patches/patch-glib_gthread-posix.c
index 44d7abc608..851cc99fdb 100644
--- a/frida-glib2/patches/patch-glib_gthread-posix.c
+++ b/frida-glib2/patches/patch-glib_gthread-posix.c
@@ -32,3 +32,86 @@ $NetBSD$
  #else
  #error Cannot support GCond on your platform.
  #endif
+@@ -1659,6 +1675,82 @@ g_thread_lifetime_beacon_check (GThreadB
+   return status == -1 && errno == ESRCH;
+ }
+ 
++#elif defined(__NetBSD__)
++
++#include <sys/types.h>
++#include <sys/sysctl.h>
++#include <lwp.h>
++
++struct _GThreadBeacon
++{
++  pid_t process_id;
++  lwpid_t thread_id;
++};
++
++GThreadBeacon *
++g_thread_lifetime_beacon_new (void)
++{
++  GThreadBeacon *beacon;
++
++  beacon = g_slice_new (GThreadBeacon);
++  beacon->process_id = getpid ();
++  beacon->thread_id = _lwp_self();
++
++  return beacon;
++}
++
++void
++g_thread_lifetime_beacon_free (GThreadBeacon *beacon)
++{
++  g_slice_free (GThreadBeacon, beacon);
++}
++
++gboolean
++g_thread_lifetime_beacon_check (GThreadBeacon *beacon)
++{
++  int st;
++  int mib[5];
++  size_t size, nlwps, i;
++  struct kinfo_lwp *kl;
++  int found = 0;
++
++  mib[0] = CTL_KERN;
++  mib[1] = KERN_LWP;
++  mib[2] = beacon->process_id;
++  mib[3] = sizeof(struct kinfo_lwp);
++  mib[4] = 0;
++
++  st = sysctl(mib, 5, NULL, &size, NULL, 0);
++  if (st == -1 || size == 0)
++    return FALSE;
++
++  mib[4] = size / sizeof(struct kinfo_lwp);
++
++  kl = (struct kinfo_lwp *)malloc(mib[4]);
++  if (!kl)
++    return FALSE;
++
++  st = sysctl(mib, 5, kl, &size, NULL, 0);
++  if (st == -1 || size == 0)
++    goto fail;
++
++  nlwps = size / sizeof(struct kinfo_lwp);
++  for (i = 0; i < nlwps; i++) {
++    if ((kl + i)->l_lid == beacon->thread_id) {
++      found = 1;
++      break;
++    }
++  }
++
++  free(kl);
++
++  return found ? TRUE : FALSE;
++
++fail:
++  free(kl);
++  return TRUE;
++}
++
+ #else
+ #error Please implement for your OS
+ #endif