diff options
Diffstat (limited to 'external/libcurl_android/jni/libcurl/lib/asyn-thread.c')
| -rwxr-xr-x | external/libcurl_android/jni/libcurl/lib/asyn-thread.c | 701 |
1 files changed, 0 insertions, 701 deletions
diff --git a/external/libcurl_android/jni/libcurl/lib/asyn-thread.c b/external/libcurl_android/jni/libcurl/lib/asyn-thread.c deleted file mode 100755 index e4ad32bb..00000000 --- a/external/libcurl_android/jni/libcurl/lib/asyn-thread.c +++ /dev/null @@ -1,701 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ - -#include "curl_setup.h" - -#ifdef HAVE_NETINET_IN_H -#include <netinet/in.h> -#endif -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif -#ifdef HAVE_ARPA_INET_H -#include <arpa/inet.h> -#endif -#ifdef __VMS -#include <in.h> -#include <inet.h> -#endif - -#if defined(USE_THREADS_POSIX) -# ifdef HAVE_PTHREAD_H -# include <pthread.h> -# endif -#elif defined(USE_THREADS_WIN32) -# ifdef HAVE_PROCESS_H -# include <process.h> -# endif -#endif - -#if (defined(NETWARE) && defined(__NOVELL_LIBC__)) -#undef in_addr_t -#define in_addr_t unsigned long -#endif - -#ifdef HAVE_GETADDRINFO -# define RESOLVER_ENOMEM EAI_MEMORY -#else -# define RESOLVER_ENOMEM ENOMEM -#endif - -#include "urldata.h" -#include "sendf.h" -#include "hostip.h" -#include "hash.h" -#include "share.h" -#include "strerror.h" -#include "url.h" -#include "multiif.h" -#include "inet_pton.h" -#include "inet_ntop.h" -#include "curl_threads.h" -#include "connect.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -#include "curl_memory.h" -/* The last #include file should be: */ -#include "memdebug.h" - -/*********************************************************************** - * Only for threaded name resolves builds - **********************************************************************/ -#ifdef CURLRES_THREADED - -/* - * Curl_resolver_global_init() - * Called from curl_global_init() to initialize global resolver environment. - * Does nothing here. - */ -int Curl_resolver_global_init(void) -{ - return CURLE_OK; -} - -/* - * Curl_resolver_global_cleanup() - * Called from curl_global_cleanup() to destroy global resolver environment. - * Does nothing here. - */ -void Curl_resolver_global_cleanup(void) -{ -} - -/* - * Curl_resolver_init() - * Called from curl_easy_init() -> Curl_open() to initialize resolver - * URL-state specific environment ('resolver' member of the UrlState - * structure). Does nothing here. - */ -CURLcode Curl_resolver_init(void **resolver) -{ - (void)resolver; - return CURLE_OK; -} - -/* - * Curl_resolver_cleanup() - * Called from curl_easy_cleanup() -> Curl_close() to cleanup resolver - * URL-state specific environment ('resolver' member of the UrlState - * structure). Does nothing here. - */ -void Curl_resolver_cleanup(void *resolver) -{ - (void)resolver; -} - -/* - * Curl_resolver_duphandle() - * Called from curl_easy_duphandle() to duplicate resolver URL state-specific - * environment ('resolver' member of the UrlState structure). Does nothing - * here. - */ -int Curl_resolver_duphandle(void **to, void *from) -{ - (void)to; - (void)from; - return CURLE_OK; -} - -static void destroy_async_data(struct Curl_async *); - -/* - * Cancel all possibly still on-going resolves for this connection. - */ -void Curl_resolver_cancel(struct connectdata *conn) -{ - destroy_async_data(&conn->async); -} - -/* This function is used to init a threaded resolve */ -static bool init_resolve_thread(struct connectdata *conn, - const char *hostname, int port, - const struct addrinfo *hints); - - -/* Data for synchronization between resolver thread and its parent */ -struct thread_sync_data { - curl_mutex_t * mtx; - int done; - - char * hostname; /* hostname to resolve, Curl_async.hostname - duplicate */ - int port; - int sock_error; - Curl_addrinfo *res; -#ifdef HAVE_GETADDRINFO - struct addrinfo hints; -#endif - struct thread_data *td; /* for thread-self cleanup */ -}; - -struct thread_data { - curl_thread_t thread_hnd; - unsigned int poll_interval; - long interval_end; - struct thread_sync_data tsd; -}; - -static struct thread_sync_data *conn_thread_sync_data(struct connectdata *conn) -{ - return &(((struct thread_data *)conn->async.os_specific)->tsd); -} - -#define CONN_THREAD_SYNC_DATA(conn) &(((conn)->async.os_specific)->tsd); - -/* Destroy resolver thread synchronization data */ -static -void destroy_thread_sync_data(struct thread_sync_data * tsd) -{ - if(tsd->mtx) { - Curl_mutex_destroy(tsd->mtx); - free(tsd->mtx); - } - - if(tsd->hostname) - free(tsd->hostname); - - if(tsd->res) - Curl_freeaddrinfo(tsd->res); - - memset(tsd,0,sizeof(*tsd)); -} - -/* Initialize resolver thread synchronization data */ -static -int init_thread_sync_data(struct thread_data * td, - const char * hostname, - int port, - const struct addrinfo *hints) -{ - struct thread_sync_data *tsd = &td->tsd; - - memset(tsd, 0, sizeof(*tsd)); - - tsd->td = td; - tsd->port = port; -#ifdef HAVE_GETADDRINFO - DEBUGASSERT(hints); - tsd->hints = *hints; -#else - (void) hints; -#endif - - tsd->mtx = malloc(sizeof(curl_mutex_t)); - if(tsd->mtx == NULL) - goto err_exit; - - Curl_mutex_init(tsd->mtx); - - tsd->sock_error = CURL_ASYNC_SUCCESS; - - /* Copying hostname string because original can be destroyed by parent - * thread during gethostbyname execution. - */ - tsd->hostname = strdup(hostname); - if(!tsd->hostname) - goto err_exit; - - return 1; - - err_exit: - /* Memory allocation failed */ - destroy_thread_sync_data(tsd); - return 0; -} - -static int getaddrinfo_complete(struct connectdata *conn) -{ - struct thread_sync_data *tsd = conn_thread_sync_data(conn); - int rc; - - rc = Curl_addrinfo_callback(conn, tsd->sock_error, tsd->res); - /* The tsd->res structure has been copied to async.dns and perhaps the DNS - cache. Set our copy to NULL so destroy_thread_sync_data doesn't free it. - */ - tsd->res = NULL; - - return rc; -} - - -#ifdef HAVE_GETADDRINFO - -/* - * getaddrinfo_thread() resolves a name and then exits. - * - * For builds without ARES, but with ENABLE_IPV6, create a resolver thread - * and wait on it. - */ -static unsigned int CURL_STDCALL getaddrinfo_thread (void *arg) -{ - struct thread_sync_data *tsd = (struct thread_sync_data*)arg; - struct thread_data *td = tsd->td; - char service[12]; - int rc; - - snprintf(service, sizeof(service), "%d", tsd->port); - - rc = Curl_getaddrinfo_ex(tsd->hostname, service, &tsd->hints, &tsd->res); - - if(rc != 0) { - tsd->sock_error = SOCKERRNO?SOCKERRNO:rc; - if(tsd->sock_error == 0) - tsd->sock_error = RESOLVER_ENOMEM; - } - - Curl_mutex_acquire(tsd->mtx); - if(tsd->done) { - /* too late, gotta clean up the mess */ - Curl_mutex_release(tsd->mtx); - destroy_thread_sync_data(tsd); - free(td); - } - else { - tsd->done = 1; - Curl_mutex_release(tsd->mtx); - } - - return 0; -} - -#else /* HAVE_GETADDRINFO */ - -/* - * gethostbyname_thread() resolves a name and then exits. - */ -static unsigned int CURL_STDCALL gethostbyname_thread (void *arg) -{ - struct thread_sync_data *tsd = (struct thread_sync_data *)arg; - struct thread_data *td = tsd->td; - - tsd->res = Curl_ipv4_resolve_r(tsd->hostname, tsd->port); - - if(!tsd->res) { - tsd->sock_error = SOCKERRNO; - if(tsd->sock_error == 0) - tsd->sock_error = RESOLVER_ENOMEM; - } - - Curl_mutex_acquire(tsd->mtx); - if(tsd->done) { - /* too late, gotta clean up the mess */ - Curl_mutex_release(tsd->mtx); - destroy_thread_sync_data(tsd); - free(td); - } - else { - tsd->done = 1; - Curl_mutex_release(tsd->mtx); - } - - return 0; -} - -#endif /* HAVE_GETADDRINFO */ - -/* - * destroy_async_data() cleans up async resolver data and thread handle. - */ -static void destroy_async_data (struct Curl_async *async) -{ - if(async->os_specific) { - struct thread_data *td = (struct thread_data*) async->os_specific; - int done; - - /* - * if the thread is still blocking in the resolve syscall, detach it and - * let the thread do the cleanup... - */ - Curl_mutex_acquire(td->tsd.mtx); - done = td->tsd.done; - td->tsd.done = 1; - Curl_mutex_release(td->tsd.mtx); - - if(!done) { - Curl_thread_destroy(td->thread_hnd); - } - else { - if(td->thread_hnd != curl_thread_t_null) - Curl_thread_join(&td->thread_hnd); - - destroy_thread_sync_data(&td->tsd); - - free(async->os_specific); - } - } - async->os_specific = NULL; - - if(async->hostname) - free(async->hostname); - - async->hostname = NULL; -} - -/* - * init_resolve_thread() starts a new thread that performs the actual - * resolve. This function returns before the resolve is done. - * - * Returns FALSE in case of failure, otherwise TRUE. - */ -static bool init_resolve_thread (struct connectdata *conn, - const char *hostname, int port, - const struct addrinfo *hints) -{ - struct thread_data *td = calloc(1, sizeof(struct thread_data)); - int err = RESOLVER_ENOMEM; - - conn->async.os_specific = (void*) td; - if(!td) - goto err_exit; - - conn->async.port = port; - conn->async.done = FALSE; - conn->async.status = 0; - conn->async.dns = NULL; - td->thread_hnd = curl_thread_t_null; - - if(!init_thread_sync_data(td, hostname, port, hints)) - goto err_exit; - - Curl_safefree(conn->async.hostname); - conn->async.hostname = strdup(hostname); - if(!conn->async.hostname) - goto err_exit; - -#ifdef HAVE_GETADDRINFO - td->thread_hnd = Curl_thread_create(getaddrinfo_thread, &td->tsd); -#else - td->thread_hnd = Curl_thread_create(gethostbyname_thread, &td->tsd); -#endif - - if(!td->thread_hnd) { -#ifndef _WIN32_WCE - err = errno; -#endif - goto err_exit; - } - - return TRUE; - - err_exit: - destroy_async_data(&conn->async); - - SET_ERRNO(err); - - return FALSE; -} - -/* - * resolver_error() calls failf() with the appropriate message after a resolve - * error - */ - -static CURLcode resolver_error(struct connectdata *conn) -{ - const char *host_or_proxy; - CURLcode rc; - if(conn->bits.httpproxy) { - host_or_proxy = "proxy"; - rc = CURLE_COULDNT_RESOLVE_PROXY; - } - else { - host_or_proxy = "host"; - rc = CURLE_COULDNT_RESOLVE_HOST; - } - - failf(conn->data, "Could not resolve %s: %s", host_or_proxy, - conn->async.hostname); - return rc; -} - -/* - * Curl_resolver_wait_resolv() - * - * waits for a resolve to finish. This function should be avoided since using - * this risk getting the multi interface to "hang". - * - * If 'entry' is non-NULL, make it point to the resolved dns entry - * - * This is the version for resolves-in-a-thread. - */ -CURLcode Curl_resolver_wait_resolv(struct connectdata *conn, - struct Curl_dns_entry **entry) -{ - struct thread_data *td = (struct thread_data*) conn->async.os_specific; - CURLcode rc = CURLE_OK; - - DEBUGASSERT(conn && td); - - /* wait for the thread to resolve the name */ - if(Curl_thread_join(&td->thread_hnd)) - rc = getaddrinfo_complete(conn); - else - DEBUGASSERT(0); - - conn->async.done = TRUE; - - if(entry) - *entry = conn->async.dns; - - if(!conn->async.dns) - /* a name was not resolved, report error */ - rc = resolver_error(conn); - - destroy_async_data(&conn->async); - - if(!conn->async.dns) - connclose(conn, "asynch resolve failed"); - - return (rc); -} - -/* - * Curl_resolver_is_resolved() is called repeatedly to check if a previous - * name resolve request has completed. It should also make sure to time-out if - * the operation seems to take too long. - */ -CURLcode Curl_resolver_is_resolved(struct connectdata *conn, - struct Curl_dns_entry **entry) -{ - struct SessionHandle *data = conn->data; - struct thread_data *td = (struct thread_data*) conn->async.os_specific; - int done = 0; - - *entry = NULL; - - if(!td) { - DEBUGASSERT(td); - return CURLE_COULDNT_RESOLVE_HOST; - } - - Curl_mutex_acquire(td->tsd.mtx); - done = td->tsd.done; - Curl_mutex_release(td->tsd.mtx); - - if(done) { - getaddrinfo_complete(conn); - - if(!conn->async.dns) { - CURLcode rc = resolver_error(conn); - destroy_async_data(&conn->async); - return rc; - } - destroy_async_data(&conn->async); - *entry = conn->async.dns; - } - else { - /* poll for name lookup done with exponential backoff up to 250ms */ - long elapsed = Curl_tvdiff(Curl_tvnow(), data->progress.t_startsingle); - if(elapsed < 0) - elapsed = 0; - - if(td->poll_interval == 0) - /* Start at 1ms poll interval */ - td->poll_interval = 1; - else if(elapsed >= td->interval_end) - /* Back-off exponentially if last interval expired */ - td->poll_interval *= 2; - - if(td->poll_interval > 250) - td->poll_interval = 250; - - td->interval_end = elapsed + td->poll_interval; - Curl_expire_latest(conn->data, td->poll_interval); - } - - return CURLE_OK; -} - -int Curl_resolver_getsock(struct connectdata *conn, - curl_socket_t *socks, - int numsocks) -{ - (void)conn; - (void)socks; - (void)numsocks; - return 0; -} - -#ifndef HAVE_GETADDRINFO -/* - * Curl_getaddrinfo() - for platforms without getaddrinfo - */ -Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn, - const char *hostname, - int port, - int *waitp) -{ - struct in_addr in; - - *waitp = 0; /* default to synchronous response */ - - if(Curl_inet_pton(AF_INET, hostname, &in) > 0) - /* This is a dotted IP address 123.123.123.123-style */ - return Curl_ip2addr(AF_INET, &in, hostname, port); - - /* fire up a new resolver thread! */ - if(init_resolve_thread(conn, hostname, port, NULL)) { - *waitp = 1; /* expect asynchronous response */ - return NULL; - } - - /* fall-back to blocking version */ - return Curl_ipv4_resolve_r(hostname, port); -} - -#else /* !HAVE_GETADDRINFO */ - -/* - * Curl_resolver_getaddrinfo() - for getaddrinfo - */ -Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn, - const char *hostname, - int port, - int *waitp) -{ - struct addrinfo hints; - struct in_addr in; - Curl_addrinfo *res; - int error; - char sbuf[12]; - int pf = PF_INET; -#ifdef CURLRES_IPV6 - struct in6_addr in6; -#endif /* CURLRES_IPV6 */ - - *waitp = 0; /* default to synchronous response */ - - /* First check if this is an IPv4 address string */ - if(Curl_inet_pton(AF_INET, hostname, &in) > 0) - /* This is a dotted IP address 123.123.123.123-style */ - return Curl_ip2addr(AF_INET, &in, hostname, port); - -#ifdef CURLRES_IPV6 - /* check if this is an IPv6 address string */ - if(Curl_inet_pton (AF_INET6, hostname, &in6) > 0) - /* This is an IPv6 address literal */ - return Curl_ip2addr(AF_INET6, &in6, hostname, port); - - /* - * Check if a limited name resolve has been requested. - */ - switch(conn->ip_version) { - case CURL_IPRESOLVE_V4: - pf = PF_INET; - break; - case CURL_IPRESOLVE_V6: - pf = PF_INET6; - break; - default: - pf = PF_UNSPEC; - break; - } - - if((pf != PF_INET) && !Curl_ipv6works()) - /* the stack seems to be a non-ipv6 one */ - pf = PF_INET; - -#endif /* CURLRES_IPV6 */ - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = pf; - hints.ai_socktype = conn->socktype; - - snprintf(sbuf, sizeof(sbuf), "%d", port); - - /* fire up a new resolver thread! */ - if(init_resolve_thread(conn, hostname, port, &hints)) { - *waitp = 1; /* expect asynchronous response */ - return NULL; - } - - /* fall-back to blocking version */ - infof(conn->data, "init_resolve_thread() failed for %s; %s\n", - hostname, Curl_strerror(conn, ERRNO)); - - error = Curl_getaddrinfo_ex(hostname, sbuf, &hints, &res); - if(error) { - infof(conn->data, "getaddrinfo() failed for %s:%d; %s\n", - hostname, port, Curl_strerror(conn, SOCKERRNO)); - return NULL; - } - return res; -} - -#endif /* !HAVE_GETADDRINFO */ - -CURLcode Curl_set_dns_servers(struct SessionHandle *data, - char *servers) -{ - (void)data; - (void)servers; - return CURLE_NOT_BUILT_IN; - -} - -CURLcode Curl_set_dns_interface(struct SessionHandle *data, - const char *interf) -{ - (void)data; - (void)interf; - return CURLE_NOT_BUILT_IN; -} - -CURLcode Curl_set_dns_local_ip4(struct SessionHandle *data, - const char *local_ip4) -{ - (void)data; - (void)local_ip4; - return CURLE_NOT_BUILT_IN; -} - -CURLcode Curl_set_dns_local_ip6(struct SessionHandle *data, - const char *local_ip6) -{ - (void)data; - (void)local_ip6; - return CURLE_NOT_BUILT_IN; -} - -#endif /* CURLRES_THREADED */ |