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openldap  2.4.31
Functions
session.c File Reference
#include <portable.h>
#include "rewrite-int.h"

Go to the source code of this file.

Functions

static int rewrite_cookie_cmp (const void *c1, const void *c2)
static int rewrite_cookie_dup (void *c1, void *c2)
struct rewrite_sessionrewrite_session_init (struct rewrite_info *info, const void *cookie)
struct rewrite_sessionrewrite_session_find (struct rewrite_info *info, const void *cookie)
void rewrite_session_return (struct rewrite_info *info, struct rewrite_session *session)
int rewrite_session_var_set_f (struct rewrite_info *info, const void *cookie, const char *name, const char *value, int flags)
int rewrite_session_var_get (struct rewrite_info *info, const void *cookie, const char *name, struct berval *value)
static void rewrite_session_clean (void *v_session)
static void rewrite_session_free (void *v_session)
int rewrite_session_delete (struct rewrite_info *info, const void *cookie)
int rewrite_session_destroy (struct rewrite_info *info)

Function Documentation

static int rewrite_cookie_cmp ( const void c1,
const void c2 
) [static]

Definition at line 28 of file session.c.

{
       const struct rewrite_session *s1, *s2;

       s1 = ( const struct rewrite_session * )c1;
       s2 = ( const struct rewrite_session * )c2;

       assert( s1 != NULL );
       assert( s2 != NULL );
       assert( s1->ls_cookie != NULL );
       assert( s2->ls_cookie != NULL );

        return ( ( s1->ls_cookie < s2->ls_cookie ) ? -1 :
                     ( ( s1->ls_cookie > s2->ls_cookie ) ? 1 : 0 ) );
}

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static int rewrite_cookie_dup ( void c1,
void c2 
) [static]

Definition at line 51 of file session.c.

{
       struct rewrite_session *s1, *s2;

       s1 = ( struct rewrite_session * )c1;
       s2 = ( struct rewrite_session * )c2;
       
       assert( s1 != NULL );
       assert( s2 != NULL );
       assert( s1->ls_cookie != NULL );
       assert( s2->ls_cookie != NULL );
       
       assert( s1->ls_cookie != s2->ls_cookie );
       
        return ( ( s1->ls_cookie == s2->ls_cookie ) ? -1 : 0 );
}

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static void rewrite_session_clean ( void v_session) [static]

Definition at line 302 of file session.c.

{
       struct rewrite_session      *session = (struct rewrite_session *)v_session;

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       rewrite_var_delete( session->ls_vars );

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wunlock( &session->ls_vars_mutex );
       ldap_pvt_thread_rdwr_destroy( &session->ls_vars_mutex );
       ldap_pvt_thread_mutex_unlock( &session->ls_mutex );
       ldap_pvt_thread_mutex_destroy( &session->ls_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
}

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int rewrite_session_delete ( struct rewrite_info info,
const void cookie 
)

Definition at line 334 of file session.c.

{
       struct rewrite_session *session, tmp = { 0 };

       assert( info != NULL );
       assert( cookie != NULL );

       session = rewrite_session_find( info, cookie );

       if ( session == NULL ) {
              return REWRITE_SUCCESS;
       }

       if ( --session->ls_count > 0 ) {
              rewrite_session_return( info, session );
              return REWRITE_SUCCESS;
       }

       rewrite_session_clean( session );

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       assert( info->li_num_cookies > 0 );
       info->li_num_cookies--;
       
       /*
        * There is nothing to delete in the return value
        */
       tmp.ls_cookie = ( void * )cookie;
       avl_delete( &info->li_cookies, ( caddr_t )&tmp, rewrite_cookie_cmp );

       free( session );

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wunlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       return REWRITE_SUCCESS;
}

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Definition at line 383 of file session.c.

{
       int count;

       assert( info != NULL );
       
#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       /*
        * Should call per-session destruction routine ...
        */
       
       count = avl_free( info->li_cookies, rewrite_session_free );
       info->li_cookies = NULL;

#if 0
       fprintf( stderr, "count = %d; num_cookies = %d\n", 
                     count, info->li_num_cookies );
#endif
       
       assert( count == info->li_num_cookies );
       info->li_num_cookies = 0;

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wunlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       return REWRITE_SUCCESS;
}

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struct rewrite_session* rewrite_session_find ( struct rewrite_info info,
const void cookie 
) [read]

Definition at line 145 of file session.c.

{
       struct rewrite_session *session, tmp;

       assert( info != NULL );
       assert( cookie != NULL );
       
       tmp.ls_cookie = ( void * )cookie;
#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_rlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
       session = ( struct rewrite_session * )avl_find( info->li_cookies,
                     ( caddr_t )&tmp, rewrite_cookie_cmp );
#ifdef USE_REWRITE_LDAP_PVT_THREADS
       if ( session ) {
              ldap_pvt_thread_mutex_lock( &session->ls_mutex );
       }
       ldap_pvt_thread_rdwr_runlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       return session;
}

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static void rewrite_session_free ( void v_session) [static]

Definition at line 321 of file session.c.

{
       struct rewrite_session      *session = (struct rewrite_session *)v_session;

       ldap_pvt_thread_mutex_lock( &session->ls_mutex );
       rewrite_session_clean( v_session );
       free( v_session );
}

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struct rewrite_session* rewrite_session_init ( struct rewrite_info info,
const void cookie 
) [read]

Definition at line 75 of file session.c.

{
       struct rewrite_session      *session, tmp;
       int                  rc;

       assert( info != NULL );
       assert( cookie != NULL );

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       tmp.ls_cookie = ( void * )cookie;
       session = ( struct rewrite_session * )avl_find( info->li_cookies, 
                     ( caddr_t )&tmp, rewrite_cookie_cmp );
       if ( session ) {
              session->ls_count++;
#ifdef USE_REWRITE_LDAP_PVT_THREADS
              ldap_pvt_thread_rdwr_wunlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
              return session;
       }
              
       session = calloc( sizeof( struct rewrite_session ), 1 );
       if ( session == NULL ) {
              return NULL;
       }
       session->ls_cookie = ( void * )cookie;
       session->ls_count = 1;
       
#ifdef USE_REWRITE_LDAP_PVT_THREADS
       if ( ldap_pvt_thread_mutex_init( &session->ls_mutex ) ) {
              free( session );
              return NULL;
       }
       if ( ldap_pvt_thread_rdwr_init( &session->ls_vars_mutex ) ) {
              ldap_pvt_thread_mutex_destroy( &session->ls_mutex );
              free( session );
              return NULL;
       }
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       rc = avl_insert( &info->li_cookies, ( caddr_t )session,
                     rewrite_cookie_cmp, rewrite_cookie_dup );
       info->li_num_cookies++;

#ifdef USE_REWRITE_LDAP_PVT_THREADS
        ldap_pvt_thread_rdwr_wunlock( &info->li_cookies_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
       
       if ( rc != 0 ) {
#ifdef USE_REWRITE_LDAP_PVT_THREADS
              ldap_pvt_thread_rdwr_destroy( &session->ls_vars_mutex );
              ldap_pvt_thread_mutex_destroy( &session->ls_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

              free( session );
              return NULL;
       }
       
       return session;
}

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void rewrite_session_return ( struct rewrite_info info,
struct rewrite_session session 
)

Definition at line 175 of file session.c.

{
       assert( session != NULL );
       ldap_pvt_thread_mutex_unlock( &session->ls_mutex );
}

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int rewrite_session_var_get ( struct rewrite_info info,
const void cookie,
const char *  name,
struct berval value 
)

Definition at line 250 of file session.c.

{
       struct rewrite_session *session;
       struct rewrite_var *var;
       int rc = REWRITE_SUCCESS;

       assert( info != NULL );
       assert( cookie != NULL );
       assert( name != NULL );
       assert( value != NULL );

       value->bv_val = NULL;
       value->bv_len = 0;
       
       if ( cookie == NULL ) {
              return REWRITE_ERR;
       }

       session = rewrite_session_find( info, cookie );
       if ( session == NULL ) {
              return REWRITE_ERR;
       }

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_rlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
       
       var = rewrite_var_find( session->ls_vars, name );
       if ( var != NULL ) {
              value->bv_val = strdup( var->lv_value.bv_val );
              value->bv_len = var->lv_value.bv_len;
       }

       if ( var == NULL || value->bv_val == NULL ) {
              rc = REWRITE_ERR;
       }

#ifdef USE_REWRITE_LDAP_PVT_THREADS
        ldap_pvt_thread_rdwr_runlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       rewrite_session_return( info, session );

       return rc;
}

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int rewrite_session_var_set_f ( struct rewrite_info info,
const void cookie,
const char *  name,
const char *  value,
int  flags 
)

Definition at line 188 of file session.c.

{
       struct rewrite_session *session;
       struct rewrite_var *var;

       assert( info != NULL );
       assert( cookie != NULL );
       assert( name != NULL );
       assert( value != NULL );

       session = rewrite_session_find( info, cookie );
       if ( session == NULL ) {
              session = rewrite_session_init( info, cookie );
              if ( session == NULL ) {
                     return REWRITE_ERR;
              }

#ifdef USE_REWRITE_LDAP_PVT_THREADS
              ldap_pvt_thread_mutex_lock( &session->ls_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
       }

#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       var = rewrite_var_find( session->ls_vars, name );
       if ( var != NULL ) {
              assert( var->lv_value.bv_val != NULL );

              (void)rewrite_var_replace( var, value, flags );

       } else {
              var = rewrite_var_insert_f( &session->ls_vars, name, value, flags );
              if ( var == NULL ) {
#ifdef USE_REWRITE_LDAP_PVT_THREADS
                     ldap_pvt_thread_rdwr_wunlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */
                     rewrite_session_return( info, session );
                     return REWRITE_ERR;
              }
       }      
       
#ifdef USE_REWRITE_LDAP_PVT_THREADS
       ldap_pvt_thread_rdwr_wunlock( &session->ls_vars_mutex );
#endif /* USE_REWRITE_LDAP_PVT_THREADS */

       rewrite_session_return( info, session );

       return REWRITE_SUCCESS;
}

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