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libsysprof: abstract subprocess usage

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For embedding cases, we need a bit more control here so that the
application can be in control of how the process is spawned.
This commit is contained in:
Christian Hergert
2019-06-11 18:47:07 -07:00
parent 19c2791198
commit e97490be16
9 changed files with 400 additions and 49 deletions
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15
src/libsysprof/sysprof-tracefd-source.c
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@ -163,18 +163,17 @@ sysprof_tracefd_source_set_envvar (SysprofTracefdSource *self,
}
static void
sysprof_tracefd_source_modify_spawn (SysprofSource *source,
GSubprocessLauncher *launcher,
GPtrArray *argv)
sysprof_tracefd_source_modify_spawn (SysprofSource *source,
SysprofSpawnable *spawnable)
{
SysprofTracefdSource *self = (SysprofTracefdSource *)source;
SysprofTracefdSourcePrivate *priv = sysprof_tracefd_source_get_instance_private (self);
gchar fdstr[12];
gint dest_fd;
gint fd;
g_assert (SYSPROF_IS_TRACEFD_SOURCE (self));
g_assert (G_IS_SUBPROCESS_LAUNCHER (launcher));
g_assert (argv != NULL);
g_assert (SYSPROF_IS_SPAWNABLE (spawnable));
g_assert (priv->tracefd == -1);
if (-1 == (fd = sysprof_memfd_create ("[sysprof-proxy-capture]")))
@ -192,9 +191,9 @@ sysprof_tracefd_source_modify_spawn (SysprofSource *source,
return;
}
g_snprintf (fdstr, sizeof fdstr, "%d", fd);
g_subprocess_launcher_setenv (launcher, priv->envvar, fdstr, TRUE);
g_subprocess_launcher_take_fd (launcher, fd, fd);
dest_fd = sysprof_spawnable_take_fd (spawnable, fd, -1);
g_snprintf (fdstr, sizeof fdstr, "%d", dest_fd);
sysprof_spawnable_setenv (spawnable, priv->envvar, fdstr);
}
static void