mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
build: rename all symbols to use sysprof_ as prefix
As we gain in usage, we need to be more careful about using a prefix that will not collide with other symbols. So version 3 of our ABI will change to using Sysprof/SYSPROF/sysprof as the various prefixes. The soname/api version bump will happen later on this branch so that things are easier to test up until then.
This commit is contained in:
Christian Hergert
249
src/libsysprof/sysprof-gjs-source.c
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249
src/libsysprof/sysprof-gjs-source.c
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/* sysprof-gjs-source.c
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*
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* Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "config.h"
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#include <signal.h>
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#include <string.h>
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#include "sysprof-capture-reader.h"
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#include "sysprof-gjs-source.h"
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struct _SysprofGjsSource
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{
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GObject parent_instance;
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SysprofCaptureWriter *writer;
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GArray *pids;
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GArray *enabled;
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};
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#define ENABLE_PROFILER 0x1
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#define DISABLE_PROFILER 0x0
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static void source_iface_init (SysprofSourceInterface *iface);
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G_DEFINE_TYPE_EXTENDED (SysprofGjsSource, sysprof_gjs_source, G_TYPE_OBJECT, 0,
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G_IMPLEMENT_INTERFACE (SYSPROF_TYPE_SOURCE, source_iface_init))
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static void
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sysprof_gjs_source_finalize (GObject *object)
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{
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SysprofGjsSource *self = (SysprofGjsSource *)object;
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g_clear_pointer (&self->pids, g_array_unref);
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g_clear_pointer (&self->enabled, g_array_unref);
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g_clear_pointer (&self->writer, sysprof_capture_writer_unref);
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G_OBJECT_CLASS (sysprof_gjs_source_parent_class)->finalize (object);
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}
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static void
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sysprof_gjs_source_class_init (SysprofGjsSourceClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->finalize = sysprof_gjs_source_finalize;
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}
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static void
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sysprof_gjs_source_init (SysprofGjsSource *self)
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{
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self->pids = g_array_new (FALSE, FALSE, sizeof (GPid));
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self->enabled = g_array_new (FALSE, FALSE, sizeof (GPid));
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}
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static void
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sysprof_gjs_source_process_capture (SysprofGjsSource *self,
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GPid pid,
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const gchar *path)
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{
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g_autoptr(GError) error = NULL;
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g_autoptr(SysprofCaptureReader) reader = NULL;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (self->writer != NULL);
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g_assert (path != NULL);
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if (!(reader = sysprof_capture_reader_new (path, &error)))
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{
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g_warning ("Failed to load capture: %s", error->message);
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return;
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}
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if (!sysprof_capture_reader_splice (reader, self->writer, &error))
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{
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g_warning ("Failed to load capture: %s", error->message);
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return;
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}
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}
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static void
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sysprof_gjs_source_process_captures (SysprofGjsSource *self)
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{
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guint i;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (self->writer != NULL);
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for (i = 0; i < self->enabled->len; i++)
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{
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g_autofree gchar *filename = NULL;
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g_autofree gchar *path = NULL;
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GPid pid = g_array_index (self->enabled, GPid, i);
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filename = g_strdup_printf ("gjs-profile-%u", (guint)pid);
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path = g_build_filename (g_get_tmp_dir (), filename, NULL);
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sysprof_gjs_source_process_capture (self, pid, path);
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}
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}
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static void
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sysprof_gjs_source_set_writer (SysprofSource *source,
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SysprofCaptureWriter *writer)
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{
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SysprofGjsSource *self = (SysprofGjsSource *)source;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (writer != NULL);
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self->writer = sysprof_capture_writer_ref (writer);
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}
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static gboolean
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pid_is_profileable (GPid pid)
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{
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g_autofree gchar *path = NULL;
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g_autofree gchar *contents = NULL;
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const gchar *libgjs;
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gsize len = 0;
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g_assert (pid != -1);
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/*
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* Make sure this process has linked in libgjs. No sense in sending it a
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* signal unless we know it can handle it.
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*/
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path = g_strdup_printf ("/proc/%d/maps", pid);
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if (!g_file_get_contents (path, &contents, &len, NULL))
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return FALSE;
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if (NULL == (libgjs = strstr (contents, "libgjs."G_MODULE_SUFFIX)))
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return FALSE;
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return TRUE;
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}
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static void
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sysprof_gjs_source_enable_pid (SysprofGjsSource *self,
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GPid pid)
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{
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union sigval si;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (pid != -1);
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si.sival_int = ENABLE_PROFILER;
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if (0 != sigqueue (pid, SIGUSR2, si))
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g_warning ("Failed to queue SIGUSR2 to pid %u", (guint)pid);
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else
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g_array_append_val (self->enabled, pid);
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}
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static void
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sysprof_gjs_source_disable_pid (SysprofGjsSource *self,
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GPid pid)
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{
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union sigval si;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (pid != -1);
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si.sival_int = DISABLE_PROFILER;
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if (0 != sigqueue (pid, SIGUSR2, si))
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g_warning ("Failed to queue SIGUSR2 to pid %u", (guint)pid);
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}
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static void
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sysprof_gjs_source_start (SysprofSource *source)
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{
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SysprofGjsSource *self = (SysprofGjsSource *)source;
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guint i;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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for (i = 0; i < self->pids->len; i++)
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{
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GPid pid = g_array_index (self->pids, GPid, i);
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if (pid_is_profileable (pid))
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sysprof_gjs_source_enable_pid (self, pid);
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}
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}
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static void
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sysprof_gjs_source_stop (SysprofSource *source)
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{
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SysprofGjsSource *self = (SysprofGjsSource *)source;
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guint i;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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for (i = 0; i < self->pids->len; i++)
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{
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GPid pid = g_array_index (self->pids, GPid, i);
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if (pid_is_profileable (pid))
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sysprof_gjs_source_disable_pid (self, pid);
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}
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sysprof_gjs_source_process_captures (self);
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}
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static void
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sysprof_gjs_source_add_pid (SysprofSource *source,
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GPid pid)
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{
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SysprofGjsSource *self = (SysprofGjsSource *)source;
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g_assert (SYSPROF_IS_GJS_SOURCE (self));
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g_assert (pid > -1);
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g_array_append_val (self->pids, pid);
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}
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static void
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source_iface_init (SysprofSourceInterface *iface)
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{
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iface->set_writer = sysprof_gjs_source_set_writer;
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iface->start = sysprof_gjs_source_start;
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iface->stop = sysprof_gjs_source_stop;
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iface->add_pid = sysprof_gjs_source_add_pid;
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}
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SysprofSource *
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sysprof_gjs_source_new (void)
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{
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return g_object_new (SYSPROF_TYPE_GJS_SOURCE, NULL);
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}
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