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Port to npth.

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* configure.ac: Don't check for PTH but for NPTH.
(AH_BOTTOM): Remove PTH_SYSCALL_SOFT.
(have_pth): Rename to ...
(have_npth): ... this.
(USE_GNU_NPTH): Rename to ...
(USE_GNU_PTH): ... this.
* m4/npth.m4: New file.
* agent/Makefile.am, agent/cache.c, agent/call-pinentry.c,
agent/call-scd.c, agent/findkey.c, agent/gpg-agent.c,
agent/trustlist.c, common/Makefile.am, common/estream.c,
common/exechelp-posix.c, common/exechelp-w32.c,
common/exechelp-w32ce.c, common/http.c, common/init.c,
common/sysutils.c, dirmngr/Makefile.am, dirmngr/crlfetch.c,
dirmngr/dirmngr.c, dirmngr/dirmngr_ldap.c, dirmngr/ldap-wrapper-ce.c,
dirmngr/ldap-wrapper.c, dirmngr/ldap.c, g13/Makefile.am,
g13/call-gpg.c, g13/g13.c, g13/runner.c, scd/Makefile.am,
scd/apdu.c, scd/app.c, scd/ccid-driver.c, scd/command.c,
scd/scdaemon.c, tools/Makefile.am: Port to npth.
This commit is contained in:
Marcus Brinkmann 2012-01-03 22:12:37 +01:00 • committed by Werner Koch
parent 495dc68586
commit 7a7a597827
36 changed files with 969 additions and 1098 deletions
Download patch file Download diff file Expand all files Collapse all files

174
g13/g13.c
View file

@ -25,7 +25,7 @@
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <pth.h>
#include <npth.h>
#include "g13.h"
@ -188,7 +188,7 @@ static unsigned int debug_value;
static int shutdown_pending;
/* The thread id of the idle task. */
static pth_t idle_task_tid;
static npth_t idle_task_thread;
@ -199,26 +199,11 @@ static void emergency_cleanup (void);
static void start_idle_task (void);
static void join_idle_task (void);
/* Begin NPth wrapper functions. */
ASSUAN_SYSTEM_NPTH_IMPL;
/* Begin Pth wrapper functions. */
ASSUAN_SYSTEM_PTH_IMPL;
#if GCRY_THREAD_OPTION_VERSION == 0
#define USE_GCRY_THREAD_CBS 1
#endif
#ifdef USE_GCRY_THREAD_CBS
GCRY_THREAD_OPTION_PTH_IMPL;
static int fixed_gcry_pth_init (void)
{
return pth_self ()? 0 : (pth_init () == FALSE) ? errno : 0;
}
#endif
/* End Pth wrapper functions. */
static const char *
my_strusage( int level )
{
@ -336,7 +321,7 @@ main ( int argc, char **argv)
ARGPARSE_ARGS pargs;
int orig_argc;
char **orig_argv;
gpg_error_t err;
gpg_error_t err = 0;
const char *fname;
int may_coredump;
FILE *configfp = NULL;
@ -368,18 +353,7 @@ main ( int argc, char **argv)
i18n_init ();
init_common_subsystems (&argc, &argv);
#ifdef USE_GCRY_THREAD_CBS
/* Libgcrypt requires us to register the threading model first.
Note that this will also do the pth_init. */
gcry_threads_pth.init = fixed_gcry_pth_init;
err = gcry_control (GCRYCTL_SET_THREAD_CBS, &gcry_threads_pth);
if (err)
{
log_fatal ("can't register GNU Pth with Libgcrypt: %s\n",
gpg_strerror (err));
}
#endif
npth_init ();
/* Check that the Libgcrypt is suitable. */
if (!gcry_check_version (NEED_LIBGCRYPT_VERSION) )
@ -444,7 +418,7 @@ main ( int argc, char **argv)
/* Prepare libassuan. */
assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT);
assuan_set_system_hooks (ASSUAN_SYSTEM_PTH);
assuan_set_system_hooks (ASSUAN_SYSTEM_NPTH);
setup_libassuan_logging (&opt.debug);
/* Setup a default control structure for command line mode. */
@ -795,7 +769,7 @@ g13_init_default_ctrl (struct server_control_s *ctrl)
/* This function is called for each signal we catch. It is run in the
main context or the one of a Pth thread and thus it is not
main context or the one of a NPth thread and thus it is not
restricted in what it may do. */
static void
handle_signal (int signo)
@ -862,29 +836,30 @@ handle_tick (void)
static void *
idle_task (void *dummy_arg)
{
sigset_t sigs; /* The set of signals we want to catch. */
pth_event_t ev; /* The main event to catch signals. */
pth_event_t time_ev; /* The time event. */
int signo; /* The number of a raised signal is stored here. */
int saved_errno;
struct timespec abstime;
struct timespec curtime;
struct timespec timeout;
int ret;
(void)dummy_arg;
/* Create the event to catch the signals. */
#ifndef HAVE_W32_SYSTEM
sigemptyset (&sigs );
sigaddset (&sigs, SIGHUP);
sigaddset (&sigs, SIGUSR1);
sigaddset (&sigs, SIGUSR2);
sigaddset (&sigs, SIGINT);
sigaddset (&sigs, SIGTERM);
pth_sigmask (SIG_UNBLOCK, &sigs, NULL);
npth_sigev_init ();
npth_sigev_add (SIGHUP);
npth_sigev_add (SIGUSR1);
npth_sigev_add (SIGUSR2);
npth_sigev_add (SIGINT);
npth_sigev_add (SIGTERM);
npth_sigev_fini ();
#else
sigs = 0;
#endif
ev = pth_event (PTH_EVENT_SIGS, &sigs, &signo);
/* The time event neds to computed n tghe fly. */
time_ev = NULL;
npth_clock_gettime (&abstime);
abstime.tv_sec += TIMERTICK_INTERVAL_SEC;
for (;;)
{
@ -897,41 +872,40 @@ idle_task (void *dummy_arg)
break; /* ready */
}
/* Create a timeout event if needed. To help with power saving
we syncronize the ticks to the next full second. */
if (!time_ev)
{
pth_time_t nexttick;
npth_clock_gettime (&curtime);
if (!(npth_timercmp (&curtime, &abstime, <)))
{
/* Timeout. */
handle_tick ();
npth_clock_gettime (&abstime);
abstime.tv_sec += TIMERTICK_INTERVAL_SEC;
}
npth_timersub (&abstime, &curtime, &timeout);
nexttick = pth_timeout (TIMERTICK_INTERVAL_SEC, 0);
if (nexttick.tv_usec > 10) /* Use a 10 usec threshhold. */
{
nexttick.tv_sec++;
nexttick.tv_usec = 0;
}
time_ev = pth_event (PTH_EVENT_TIME, nexttick);
}
ret = npth_pselect (0, NULL, NULL, NULL, &timeout, npth_sigev_sigmask());
saved_errno = errno;
pth_event_concat (ev, time_ev, NULL);
pth_wait (ev);
pth_event_isolate (time_ev);
#ifndef HAVE_W32_SYSTEM
while (npth_sigev_get_pending(&signo))
handle_signal (signo);
#endif
if (pth_event_occurred (ev))
{
handle_signal (signo);
}
if (ret == -1 && saved_errno != EINTR)
{
log_error (_("npth_pselect failed: %s - waiting 1s\n"),
strerror (saved_errno));
npth_sleep (1);
continue;
}
if (time_ev && pth_event_occurred (time_ev))
{
pth_event_free (time_ev, PTH_FREE_ALL);
time_ev = NULL;
handle_tick ();
}
if (ret <= 0)
/* Interrupt or timeout. Will be handled when calculating the
next timeout. */
continue;
/* Here one would add processing of file descriptors. */
}
pth_event_free (ev, PTH_FREE_ALL);
if (time_ev)
pth_event_free (time_ev, PTH_FREE_ALL);
log_info (_("%s %s stopped\n"), strusage(11), strusage(13));
return NULL;
}
@ -941,23 +915,34 @@ idle_task (void *dummy_arg)
static void
start_idle_task (void)
{
pth_attr_t tattr;
pth_t tid;
npth_attr_t tattr;
npth_t thread;
sigset_t sigs; /* The set of signals we want to catch. */
int err;
tattr = pth_attr_new ();
pth_attr_set (tattr, PTH_ATTR_JOINABLE, 1);
pth_attr_set (tattr, PTH_ATTR_STACK_SIZE, 64*1024);
pth_attr_set (tattr, PTH_ATTR_NAME, "idle-task");
/* These signals should always go to the idle task, so they need to
be blocked everywhere else. We assume start_idle_task is called
from the main thread before any other threads are created. */
sigemptyset (&sigs);
sigaddset (&sigs, SIGHUP);
sigaddset (&sigs, SIGUSR1);
sigaddset (&sigs, SIGUSR2);
sigaddset (&sigs, SIGINT);
sigaddset (&sigs, SIGTERM);
npth_sigmask (SIG_BLOCK, &sigs, NULL);
tid = pth_spawn (tattr, idle_task, NULL);
if (!tid)
npth_attr_init (&tattr);
npth_attr_setdetachstate (&tattr, NPTH_CREATE_JOINABLE);
err = npth_create (&thread, &tattr, idle_task, NULL);
if (err)
{
log_fatal ("error starting idle task: %s\n",
gpg_strerror (gpg_error_from_syserror ()));
log_fatal ("error starting idle task: %s\n", strerror (err));
return; /*NOTREACHED*/
}
idle_task_tid = tid;
pth_attr_destroy (tattr);
npth_setname_np (thread, "idle-task");
idle_task_thread = thread;
npth_attr_destroy (&tattr);
}
@ -965,10 +950,15 @@ start_idle_task (void)
static void
join_idle_task (void)
{
if (idle_task_tid)
int err;
/* FIXME: This assumes that a valid pthread_t is non-null. That is
not guaranteed. */
if (idle_task_thread)
{
if (!pth_join (idle_task_tid, NULL))
err = npth_join (idle_task_thread, NULL);
if (err)
log_error ("waiting for idle task thread failed: %s\n",
gpg_strerror (gpg_error_from_syserror ()));
strerror (err));
}
}