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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

222
scd/scdaemon.c
View file

@ -35,7 +35,7 @@
#endif /*HAVE_W32_SYSTEM*/
#include <unistd.h>
#include <signal.h>
#include <pth.h>
#include <npth.h>
#define JNLIB_NEED_LOG_LOGV
#define JNLIB_NEED_AFLOCAL
@ -169,7 +169,7 @@ static ARGPARSE_OPTS opts[] = {
easy way to block on card status changes it is the best we can do.
For PC/SC we could in theory use an extra thread to wait for status
changes but that requires a native thread because there is no way
to make the underlying PC/SC card change function block using a Pth
to make the underlying PC/SC card change function block using a Npth
mechanism. Given that a native thread could only be used under W32
we don't do that at all. */
#define TIMERTICK_INTERVAL_SEC (0)
@ -206,20 +206,9 @@ static void *start_connection_thread (void *arg);
static void handle_connections (int listen_fd);
/* Pth wrapper function definitions. */
ASSUAN_SYSTEM_PTH_IMPL;
ASSUAN_SYSTEM_NPTH_IMPL;
#if defined(GCRY_THREAD_OPTION_VERSION) && (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
static int active_connections;
static char *
@ -280,18 +269,18 @@ my_strusage (int level)
static int
tid_log_callback (unsigned long *rvalue)
{
#ifdef PTH_HAVE_PTH_THREAD_ID
*rvalue = pth_thread_id ();
#else
*rvalue = (unsigned long)pth_self ();
#endif
int len = sizeof (*rvalue);
npth_t thread;
thread = npth_self ();
if (sizeof (thread) < len)
len = sizeof (thread);
memcpy (rvalue, &thread, len);
return 2; /* Use use hex representation. */
}
/* Setup the debugging. With a LEVEL of NULL only the active debug
flags are propagated to the subsystems. With LEVEL set, a specific
set of debug flags is set; thus overriding all flags already
@ -382,9 +371,6 @@ main (int argc, char **argv )
{
ARGPARSE_ARGS pargs;
int orig_argc;
#ifdef USE_GCRY_THREAD_CBS
gpg_error_t err;
#endif
char **orig_argv;
FILE *configfp = NULL;
char *configname = NULL;
@ -406,6 +392,8 @@ main (int argc, char **argv )
int allow_coredump = 0;
int standard_socket = 0;
struct assuan_malloc_hooks malloc_hooks;
int res;
npth_t pipecon_handler;
set_strusage (my_strusage);
gcry_control (GCRYCTL_SUSPEND_SECMEM_WARN);
@ -418,18 +406,7 @@ main (int argc, char **argv )
i18n_init ();
init_common_subsystems (&argc, &argv);
/* Libgcrypt requires us to register the threading model first.
Note that this will also do the pth_init. */
#ifdef USE_GCRY_THREAD_CBS
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 libraries are suitable. Do it here because
the option parsing may need services of the library */
@ -446,7 +423,7 @@ main (int argc, char **argv )
malloc_hooks.free = gcry_free;
assuan_set_malloc_hooks (&malloc_hooks);
assuan_set_gpg_err_source (GPG_ERR_SOURCE_DEFAULT);
assuan_set_system_hooks (ASSUAN_SYSTEM_PTH);
assuan_set_system_hooks (ASSUAN_SYSTEM_NPTH);
assuan_sock_init ();
setup_libassuan_logging (&opt.debug);
@ -712,7 +689,7 @@ main (int argc, char **argv )
{
/* This is the simple pipe based server */
ctrl_t ctrl;
pth_attr_t tattr;
npth_attr_t tattr;
int fd = -1;
#ifndef HAVE_W32_SYSTEM
@ -751,10 +728,14 @@ main (int argc, char **argv )
socket_name, &socket_nonce));
}
tattr = pth_attr_new();
pth_attr_set (tattr, PTH_ATTR_JOINABLE, 0);
pth_attr_set (tattr, PTH_ATTR_STACK_SIZE, 512*1024);
pth_attr_set (tattr, PTH_ATTR_NAME, "pipe-connection");
res = npth_attr_init (&tattr);
if (res)
{
log_error ("error allocating thread attributes: %s\n",
strerror (res));
scd_exit (2);
}
npth_attr_setdetachstate (&tattr, NPTH_CREATE_DETACHED);
ctrl = xtrycalloc (1, sizeof *ctrl);
if ( !ctrl )
@ -764,13 +745,16 @@ main (int argc, char **argv )
scd_exit (2);
}
ctrl->thread_startup.fd = GNUPG_INVALID_FD;
if ( !pth_spawn (tattr, start_connection_thread, ctrl) )
res = npth_create (&pipecon_handler, &tattr, start_connection_thread, ctrl);
if (res)
{
log_error ("error spawning pipe connection handler: %s\n",
strerror (errno) );
strerror (res) );
xfree (ctrl);
scd_exit (2);
}
npth_setname_np (pipecon_handler, "pipe-connection");
npth_attr_destroy (&tattr);
/* We run handle_connection to wait for the shutdown signal and
to run the ticker stuff. */
@ -981,8 +965,8 @@ handle_signal (int signo)
if (!shutdown_pending)
log_info ("SIGTERM received - shutting down ...\n");
else
log_info ("SIGTERM received - still %ld running threads\n",
pth_ctrl( PTH_CTRL_GETTHREADS ));
log_info ("SIGTERM received - still %i running threads\n",
active_connections);
shutdown_pending++;
if (shutdown_pending > 2)
{
@ -1176,9 +1160,7 @@ start_connection_thread (void *arg)
static void
handle_connections (int listen_fd)
{
pth_attr_t tattr;
pth_event_t ev, time_ev;
sigset_t sigs;
npth_attr_t tattr;
int signo;
struct sockaddr_un paddr;
socklen_t plen;
@ -1186,25 +1168,27 @@ handle_connections (int listen_fd)
int ret;
int fd;
int nfd;
struct timespec abstime;
struct timespec curtime;
struct timespec timeout;
int saved_errno;
tattr = pth_attr_new();
pth_attr_set (tattr, PTH_ATTR_JOINABLE, 0);
pth_attr_set (tattr, PTH_ATTR_STACK_SIZE, 512*1024);
ret = npth_attr_init(&tattr);
/* FIXME: Check error. */
npth_attr_setdetachstate (&tattr, NPTH_CREATE_DETACHED);
#ifndef HAVE_W32_SYSTEM /* fixme */
sigemptyset (&sigs );
sigaddset (&sigs, SIGHUP);
sigaddset (&sigs, SIGUSR1);
sigaddset (&sigs, SIGUSR2);
sigaddset (&sigs, SIGINT);
sigaddset (&sigs, SIGTERM);
pth_sigmask (SIG_UNBLOCK, &sigs, NULL);
ev = pth_event (PTH_EVENT_SIGS, &sigs, &signo);
#ifndef HAVE_W32_SYSTEM
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;
ev = pth_event (PTH_EVENT_SIGS, &sigs, &signo);
#endif
time_ev = NULL;
FD_ZERO (&fdset);
nfd = 0;
@ -1214,13 +1198,17 @@ handle_connections (int listen_fd)
nfd = listen_fd;
}
npth_clock_gettime (&curtime);
timeout.tv_sec = TIMERTICK_INTERVAL_SEC;
timeout.tv_nsec = TIMERTICK_INTERVAL_USEC * 1000;
npth_timeradd (&curtime, &timeout, &abstime);
/* We only require abstime here. The others will be reused. */
for (;;)
{
sigset_t oldsigs;
if (shutdown_pending)
{
if (pth_ctrl (PTH_CTRL_GETTHREADS) == 1)
if (active_connections == 0)
break; /* ready */
/* Do not accept anymore connections but wait for existing
@ -1231,80 +1219,47 @@ handle_connections (int listen_fd)
listen_fd = -1;
}
/* Create a timeout event if needed. Round it up to the next
microsecond interval to help with power saving. */
if (!time_ev)
{
pth_time_t nexttick = pth_timeout (TIMERTICK_INTERVAL_SEC,
TIMERTICK_INTERVAL_USEC/2);
if ((nexttick.tv_usec % (TIMERTICK_INTERVAL_USEC/2)) > 10)
{
nexttick.tv_usec = ((nexttick.tv_usec
/(TIMERTICK_INTERVAL_USEC/2))
+ 1) * (TIMERTICK_INTERVAL_USEC/2);
if (nexttick.tv_usec >= 1000000)
{
nexttick.tv_sec++;
nexttick.tv_usec = 0;
}
}
time_ev = pth_event (PTH_EVENT_TIME, nexttick);
}
npth_clock_gettime (&curtime);
if (!(npth_timercmp (&curtime, &abstime, <)))
{
/* Timeout. */
handle_tick ();
timeout.tv_sec = TIMERTICK_INTERVAL_SEC;
timeout.tv_nsec = TIMERTICK_INTERVAL_USEC * 1000;
npth_timeradd (&curtime, &timeout, &abstime);
}
npth_timersub (&abstime, &curtime, &timeout);
/* POSIX says that fd_set should be implemented as a structure,
thus a simple assignment is fine to copy the entire set. */
read_fdset = fdset;
if (time_ev)
pth_event_concat (ev, time_ev, NULL);
ret = pth_select_ev (nfd+1, &read_fdset, NULL, NULL, NULL, ev);
if (time_ev)
pth_event_isolate (time_ev);
ret = npth_pselect (nfd+1, &read_fdset, NULL, NULL, &timeout, npth_sigev_sigmask());
saved_errno = errno;
if (ret == -1)
#ifndef HAVE_W32_SYSTEM
while (npth_sigev_get_pending(&signo))
handle_signal (signo);
#endif
if (ret == -1 && saved_errno != EINTR)
{
if (pth_event_occurred (ev)
|| (time_ev && pth_event_occurred (time_ev)))
{
if (pth_event_occurred (ev))
handle_signal (signo);
if (time_ev && pth_event_occurred (time_ev))
{
pth_event_free (time_ev, PTH_FREE_ALL);
time_ev = NULL;
handle_tick ();
}
continue;
}
log_error (_("pth_select failed: %s - waiting 1s\n"),
strerror (errno));
pth_sleep (1);
log_error (_("pth_pselect failed: %s - waiting 1s\n"),
strerror (saved_errno));
npth_sleep (1);
continue;
}
if (pth_event_occurred (ev))
{
handle_signal (signo);
}
if (time_ev && pth_event_occurred (time_ev))
{
pth_event_free (time_ev, PTH_FREE_ALL);
time_ev = NULL;
handle_tick ();
}
/* We now might create new threads and because we don't want any
signals - we are handling here - to be delivered to a new
thread. Thus we need to block those signals. */
pth_sigmask (SIG_BLOCK, &sigs, &oldsigs);
if (ret <= 0)
/* Timeout. Will be handled when calculating the next timeout. */
continue;
if (listen_fd != -1 && FD_ISSET (listen_fd, &read_fdset))
{
ctrl_t ctrl;
plen = sizeof paddr;
fd = pth_accept (listen_fd, (struct sockaddr *)&paddr, &plen);
fd = npth_accept (listen_fd, (struct sockaddr *)&paddr, &plen);
if (fd == -1)
{
log_error ("accept failed: %s\n", strerror (errno));
@ -1318,30 +1273,27 @@ handle_connections (int listen_fd)
else
{
char threadname[50];
npth_t thread;
snprintf (threadname, sizeof threadname-1, "conn fd=%d", fd);
threadname[sizeof threadname -1] = 0;
pth_attr_set (tattr, PTH_ATTR_NAME, threadname);
ctrl->thread_startup.fd = INT2FD (fd);
if (!pth_spawn (tattr, start_connection_thread, ctrl))
ret = npth_create (&thread, &tattr, start_connection_thread, ctrl);
if (ret)
{
log_error ("error spawning connection handler: %s\n",
strerror (errno) );
strerror (ret));
xfree (ctrl);
close (fd);
}
else
npth_setname_np (thread, threadname);
}
fd = -1;
}
/* Restore the signal mask. */
pth_sigmask (SIG_SETMASK, &oldsigs, NULL);
}
pth_event_free (ev, PTH_FREE_ALL);
if (time_ev)
pth_event_free (time_ev, PTH_FREE_ALL);
cleanup ();
log_info (_("%s %s stopped\n"), strusage(11), strusage(13));
npth_attr_destroy (&tattr);
}