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Code Activity

* query.c (initialize_module_query):

Browse Source 
* call-scd.c (initialize_module_call_scd): New.

* w32-pth.c (pth_init): Enable debugging depending on env var.
(pth_self): New.
(pth_mutex_release, pth_mutex_acquire): Implemented directly using
the W32 API.
This commit is contained in:
Werner Koch 2004-12-19 17:44:20 +00:00
parent e73100a940
commit 8f22f895e9
9 changed files with 123 additions and 82 deletions
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6
agent/ChangeLog
View File

@ -1,3 +1,9 @@
2004-12-19 Werner Koch <wk@g10code.com>
* query.c (initialize_module_query):
* call-scd.c (initialize_module_call_scd): New.
2004-12-18 Werner Koch <wk@g10code.com>
* gpg-agent.c (main): Remove special Pth initialize.

2
agent/agent.h
View File

@ -145,6 +145,7 @@ gpg_error_t agent_key_from_file (ctrl_t ctrl,
int agent_key_available (const unsigned char *grip);
/*-- query.c --*/
void initialize_module_query (void);
int agent_askpin (ctrl_t ctrl,
const char *desc_text, const char *inital_errtext,
struct pin_entry_info_s *pininfo);
@ -212,6 +213,7 @@ int divert_generic_cmd (ctrl_t ctrl,
/*-- call-scd.c --*/
void initialize_module_call_scd (void);
int agent_reset_scd (ctrl_t ctrl);
int agent_card_learn (ctrl_t ctrl,
void (*kpinfo_cb)(void*, const char *),

21
agent/call-scd.c
View File

@ -52,7 +52,7 @@
static ASSUAN_CONTEXT scd_ctx = NULL;
#ifdef USE_GNU_PTH
static pth_mutex_t scd_lock = PTH_MUTEX_INIT;
static pth_mutex_t scd_lock;
#endif
/* We need to keep track of the connection currently using the SCD.
For a pipe server this is all a NOP because the connection will
@ -153,6 +153,23 @@ get_membuf (struct membuf *mb, size_t *len)
/* This function must be called once to initialize this module. This
has to be done before a second thread is spawned. We can't do the
static initialization because Pth emulation code might not be able
to do a static init; in particualr, it is not possible for W32. */
void
initialize_module_call_scd (void)
{
#ifdef USE_GNU_PTH
static int initialized;
if (!initialized)
if (pth_mutex_init (&scd_lock))
initialized = 1;
#endif /*USE_GNU_PTH*/
}
static int
unlock_scd (int rc)
{
@ -163,7 +180,7 @@ unlock_scd (int rc)
if (!rc)
rc = gpg_error (GPG_ERR_INTERNAL);
}
#endif
#endif /*USE_GNU_PTH*/
return rc;
}

4
agent/gpg-agent.c
View File

@ -627,6 +627,10 @@ main (int argc, char **argv )
exit (1);
}
initialize_module_query ();
initialize_module_call_scd ();
/* Try to create missing directories. */
create_directories ();
if (debug_wait && pipe_server)

21
agent/query.c
View File

@ -51,7 +51,7 @@
static ASSUAN_CONTEXT entry_ctx = NULL;
#ifdef USE_GNU_PTH
static pth_mutex_t entry_lock = PTH_MUTEX_INIT;
static pth_mutex_t entry_lock;
#endif
/* data to be passed to our callbacks */
@ -64,6 +64,25 @@ struct entry_parm_s {
/* This function must be called once to initialize this module. This
has to be done before a second thread is spawned. We can't do the
static initialization because Pth emulation code might not be able
to do a static init; in particualr, it is not possible for W32. */
void
initialize_module_query (void)
{
#ifdef USE_GNU_PTH
static int initialized;
if (!initialized)
if (pth_mutex_init (&entry_lock))
initialized = 1;
#endif /*USE_GNU_PTH*/
}
/* Unlock the pinentry so that another thread can start one and
disconnect that pinentry - we do this after the unlock so that a
stalled pinentry does not block other threads. Fixme: We should

3
jnlib/ChangeLog
View File

@ -1,6 +1,9 @@
2004-12-19 Werner Koch <wk@g10code.com>
* w32-pth.c (pth_init): Enable debugging depending on env var.
(pth_self): New.
(pth_mutex_release, pth_mutex_acquire): Implemented directly using
the W32 API.
2004-12-18 Werner Koch <wk@g10code.com>

123
jnlib/w32-pth.c
View File

@ -68,7 +68,6 @@ static HANDLE pth_signo_ev;
static CRITICAL_SECTION pth_shd;
struct pth_event_s
{
struct pth_event_s * next;
@ -306,8 +305,6 @@ pth_write (int fd, const void * buffer, size_t size)
fprintf (stderr, "%s: pth_write(%d) failed in write: %s\n",
log_get_prefix (NULL), fd,
w32_strerror (strerr, sizeof strerr));
fprintf (stderr, "--> fd = %d, handle = %p, size = %lu\n",
fd, (HANDLE)fd, size);
n = -1;
}
else
@ -444,106 +441,93 @@ pth_connect (int fd, struct sockaddr *name, int namelen)
int
pth_mutex_release (pth_mutex_t *hd)
pth_mutex_release (pth_mutex_t *mutex)
{
if (!hd)
return -1;
int rc;
implicit_init ();
enter_pth (__FUNCTION__);
if (hd->mx)
if (!ReleaseMutex (*mutex))
{
CloseHandle (hd->mx);
hd->mx = NULL;
char strerr[256];
fprintf (stderr, "%s: pth_release_mutex %p failed: %s\n",
log_get_prefix (NULL), *mutex,
w32_strerror (strerr, sizeof strerr));
rc = FALSE;
}
free (hd);
else
rc = TRUE;
leave_pth (__FUNCTION__);
return 0;
return rc;
}
int
pth_mutex_acquire (pth_mutex_t *hd, int tryonly, pth_event_t ev_extra)
pth_mutex_acquire (pth_mutex_t *mutex, int tryonly, pth_event_t ev_extra)
{
int code;
int rc;
implicit_init ();
enter_pth (__FUNCTION__);
if (!hd || !hd->mx)
{
leave_pth (__FUNCTION__);
return FALSE;
}
/* FIXME: ev_extra is not yet supported. */
#if 0
/* still not locked, so simply acquire mutex? */
if (!(mutex->mx_state & PTH_MUTEX_LOCKED))
code = WaitForSingleObject (*mutex, INFINITE);
switch (code)
{
mutex->mx_state |= PTH_MUTEX_LOCKED;
mutex->mx_count = 1;
pth_ring_append(&(pth_current->mutexring), &(mutex->mx_node));
pth_debug1("pth_mutex_acquire: immediately locking mutex");
return 0;
}
case WAIT_FAILED:
{
char strerr[256];
/* already locked by caller? */
if (mutex->mx_count >= 1 && mutex->mx_owner == pth_current)
{
/* recursive lock */
mutex->mx_count++;
pth_debug1("pth_mutex_acquire: recursive locking");
return 0;
fprintf (stderr, "%s: pth_mutex_acquire for %p failed: %s\n",
log_get_prefix (NULL), *mutex,
w32_strerror (strerr, sizeof strerr));
}
rc = FALSE;
break;
if (tryonly)
{
leave_pth (__FUNCTION__);
return -1;
}
case WAIT_OBJECT_0:
rc = TRUE;
break;
for (;;)
{
ev = pth_event(PTH_EVENT_MUTEX|PTH_MODE_STATIC, &ev_key, mutex);
if (ev_extra != NULL)
pth_event_concat (ev, ev_extra, NULL);
pth_wait (ev);
if (ev_extra != NULL)
{
pth_event_isolate (ev);
if (do_pth_event_status(ev) == PTH_STATUS_PENDING)
{
leave_pth (__FUNCTION__);
return -1;
}
}
if (!(mutex->mx_state & PTH_MUTEX_LOCKED))
default:
fprintf (stderr, "%s: WaitForSingleObject returned unexpected "
"code %d for mutex %p\n",
log_get_prefix (NULL), code, *mutex);
rc = FALSE;
break;
}
#endif
hd->mx_state |= PTH_MUTEX_LOCKED;
leave_pth (__FUNCTION__);
return TRUE;
return rc;
}
int
pth_mutex_init (pth_mutex_t *hd)
pth_mutex_init (pth_mutex_t *mutex)
{
SECURITY_ATTRIBUTES sa;
implicit_init ();
enter_pth (__FUNCTION__);
if (hd->mx)
{
ReleaseMutex (hd->mx);
CloseHandle (hd->mx);
}
memset (&sa, 0, sizeof sa);
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = NULL;
sa.nLength = sizeof sa;
hd->mx = CreateMutex (&sa, FALSE, NULL);
hd->mx_state = PTH_MUTEX_INITIALIZED;
*mutex = CreateMutex (&sa, FALSE, NULL);
if (!*mutex)
{
free (*mutex);
*mutex = NULL;
leave_pth (__FUNCTION__);
return FALSE;
}
leave_pth (__FUNCTION__);
return TRUE;
@ -695,6 +679,12 @@ pth_spawn (pth_attr_t hd, void *(*func)(void *), void *arg)
}
pth_t
pth_self (void)
{
return GetCurrentThread ();
}
int
pth_join (pth_t hd, void **value)
{
@ -1271,9 +1261,6 @@ do_pth_wait (pth_event_t ev)
case PTH_EVENT_MUTEX:
fprintf (stderr, "pth_wait: add mutex event.\n");
hdidx[i++] = pos;
waitbuf[pos++] = tmp->u.mx->mx;
/* XXX: Use SetEvent(hd->ev) */
break;
}
}

12
jnlib/w32-pth.h
View File

@ -53,7 +53,9 @@ enum
/* Mutex values. */
#define PTH_MUTEX_INITIALIZED (1<<0)
#define PTH_MUTEX_LOCKED (1<<1)
#define PTH_MUTEX_INIT {PTH_MUTEX_INITIALIZED}
/* Note: We can't do static initialization, thus we don't define the
initializer PTH_MUTEX_INIT. */
#define PTH_KEY_INIT (1<<0)
@ -158,12 +160,7 @@ typedef void *pth_t;
/* The Mutex object. */
struct pth_mutex_s
{
unsigned mx_state;
W32_PTH_HANDLE_INTERNAL mx;
};
typedef struct pth_mutex_s pth_mutex_t;
typedef W32_PTH_HANDLE_INTERNAL pth_mutex_t;
/* The Event object. */
@ -214,6 +211,7 @@ int pth_attr_destroy (pth_attr_t hd);
int pth_attr_set (pth_attr_t hd, int field, ...);
pth_t pth_spawn (pth_attr_t hd, void *(*func)(void *), void *arg);
pth_t pth_self (void);
int pth_join (pth_t hd, void **value);
int pth_abort (pth_t hd);
void pth_exit (void *value);

5
scd/scdaemon.c
View File

@ -351,12 +351,17 @@ main (int argc, char **argv )
Note that this will also do the pth_init. */
#ifndef HAVE_OPENSC
#ifdef USE_GNU_PTH
#ifdef HAVE_W32_SYSTEM
/* For W32 we need pth. */
pth_init ();
#else
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
#endif /*USE_GNU_PTH*/
#endif /*!HAVE_OPENSC*/