libgit2 · ethomson · May 13, 2023 · May 12, 2023 · May 12, 2023 · May 12, 2023
diff --git a/ci/test.sh b/ci/test.sh
@@ -171,7 +171,7 @@ if [ -z "$SKIP_PROXY_TESTS" ]; then
 fi
 
 if [ -z "$SKIP_NTLM_TESTS" -o -z "$SKIP_ONLINE_TESTS" ]; then
-	curl --location --silent --show-error https://github.com/ethomson/poxygit/releases/download/v0.5.1/poxygit-0.5.1.jar >poxygit.jar
+	curl --location --silent --show-error https://github.com/ethomson/poxygit/releases/download/v0.6.0/poxygit-0.6.0.jar >poxygit.jar
 
 	echo "Starting HTTP server..."
 	HTTP_DIR=`mktemp -d ${TMPDIR}/http.XXXXXXXX`
@@ -271,9 +271,13 @@ if [ -z "$SKIP_ONLINE_TESTS" ]; then
 
 	export GITTEST_REMOTE_REDIRECT_INITIAL="http://localhost:9000/initial-redirect/libgit2/TestGitRepository"
 	export GITTEST_REMOTE_REDIRECT_SUBSEQUENT="http://localhost:9000/subsequent-redirect/libgit2/TestGitRepository"
+	export GITTEST_REMOTE_SPEED_SLOW="http://localhost:9000/speed-9600/test.git"
+	export GITTEST_REMOTE_SPEED_TIMESOUT="http://localhost:9000/speed-0.5/test.git"
 	run_test online
 	unset GITTEST_REMOTE_REDIRECT_INITIAL
 	unset GITTEST_REMOTE_REDIRECT_SUBSEQUENT
+	unset GITTEST_REMOTE_SPEED_SLOW
+	unset GITTEST_REMOTE_SPEED_TIMESOUT
 
 	# Run the online tests that immutably change global state separately
 	# to avoid polluting the test environment.

diff --git a/include/git2/common.h b/include/git2/common.h
@@ -224,7 +224,11 @@ typedef enum {
 	GIT_OPT_GET_OWNER_VALIDATION,
 	GIT_OPT_SET_OWNER_VALIDATION,
 	GIT_OPT_GET_HOMEDIR,
-	GIT_OPT_SET_HOMEDIR
+	GIT_OPT_SET_HOMEDIR,
+	GIT_OPT_SET_SERVER_CONNECT_TIMEOUT,
+	GIT_OPT_GET_SERVER_CONNECT_TIMEOUT,
+	GIT_OPT_SET_SERVER_TIMEOUT,
+	GIT_OPT_GET_SERVER_TIMEOUT
 } git_libgit2_opt_t;
 
 /**
@@ -480,6 +484,27 @@ typedef enum {
  *      >
  *      > - `path` directory of home directory.
  *
+ *   opts(GIT_OPT_GET_SERVER_CONNECT_TIMEOUT, int *timeout)
+ *      > Gets the timeout (in milliseconds) to attempt connections to
+ *      > a remote server.
+ *
+ *   opts(GIT_OPT_SET_SERVER_CONNECT_TIMEOUT, int timeout)
+ *      > Sets the timeout (in milliseconds) to attempt connections to
+ *      > a remote server. This is supported only for HTTP(S) connections
+ *      > and is not supported by SSH. Set to 0 to use the system default.
+ *      > Note that this may not be able to be configured longer than the
+ *      > system default, typically 75 seconds.
+ *
+ *   opts(GIT_OPT_GET_SERVER_TIMEOUT, int *timeout)
+ *      > Gets the timeout (in milliseconds) for reading from and writing
+ *      > to a remote server.
+ *
+ *   opts(GIT_OPT_SET_SERVER_TIMEOUT, int timeout)
+ *      > Sets the timeout (in milliseconds) for reading from and writing
+ *      > to a remote server. This is supported only for HTTP(S)
+ *      > connections and is not supported by SSH. Set to 0 to use the
+ *      > system default.
+ *
  * @param option Option key
  * @param ... value to set the option
  * @return 0 on success, <0 on failure

diff --git a/include/git2/errors.h b/include/git2/errors.h
@@ -58,7 +58,8 @@ typedef enum {
 	GIT_EMISMATCH       = -33,	/**< Hashsum mismatch in object */
 	GIT_EINDEXDIRTY     = -34,	/**< Unsaved changes in the index would be overwritten */
 	GIT_EAPPLYFAIL      = -35,	/**< Patch application failed */
-	GIT_EOWNER          = -36	/**< The object is not owned by the current user */
+	GIT_EOWNER          = -36,	/**< The object is not owned by the current user */
+	GIT_TIMEOUT         = -37	/**< The operation timed out */
 } git_error_code;
 
 /**

diff --git a/include/git2/sys/stream.h b/include/git2/sys/stream.h
@@ -29,8 +29,22 @@ GIT_BEGIN_DECL
 typedef struct git_stream {
 	int version;
 
-	int encrypted;
-	int proxy_support;
+	int encrypted : 1,
+	    proxy_support : 1;
+
+	/**
+	 * Timeout for read and write operations; can be set to `0` to
+	 * block indefinitely.
+	 */
+	int timeout;
+
+	/**
+	 * Timeout to connect to the remote server; can be set to `0`
+	 * to use the system defaults. This can be shorter than the
+	 * system default - often 75 seconds - but cannot be longer.
+	 */
+	int connect_timeout;
+
 	int GIT_CALLBACK(connect)(struct git_stream *);
 	int GIT_CALLBACK(certificate)(git_cert **, struct git_stream *);
 	int GIT_CALLBACK(set_proxy)(struct git_stream *, const git_proxy_options *proxy_opts);

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -84,8 +84,17 @@ check_prototype_definition_safe(qsort_s
 
 # random / entropy data
 
-check_function_exists(getentropy GIT_RAND_GETENTROPY)
-check_function_exists(getloadavg GIT_RAND_GETLOADAVG)
+check_symbol_exists(getentropy unistd.h GIT_RAND_GETENTROPY)
+check_symbol_exists(getloadavg stdlib.h GIT_RAND_GETLOADAVG)
+
+# poll
+
+if(WIN32)
+	set(GIT_IO_WSAPOLL 1)
+else()
+	check_symbol_exists(poll poll.h GIT_IO_POLL)
+	check_symbol_exists(select sys/select.h GIT_IO_SELECT)
+endif()
 
 # determine architecture of the machine
 

diff --git a/src/cli/progress.c b/src/cli/progress.c
@@ -15,10 +15,10 @@
 /*
  * Show updates to the percentage and number of objects received
  * separately from the throughput to give an accurate progress while
- * avoiding too much noise on the screen.
+ * avoiding too much noise on the screen. (In milliseconds.)
  */
-#define PROGRESS_UPDATE_TIME 0.10
-#define THROUGHPUT_UPDATE_TIME 1.00
+#define PROGRESS_UPDATE_TIME    60
+#define THROUGHPUT_UPDATE_TIME 500
 
 #define is_nl(c) ((c) == '\r' || (c) == '\n')
 
@@ -54,7 +54,7 @@ static int progress_write(cli_progress *progress, bool force, git_str *line)
 	bool has_nl;
 	size_t no_nl = no_nl_len(line->ptr, line->size);
 	size_t nl = nl_len(&has_nl, line->ptr + no_nl, line->size - no_nl);
-	double now = git__timer();
+	uint64_t now = git_time_monotonic();
 	size_t i;
 
 	/* Avoid spamming the console with progress updates */
@@ -191,20 +191,21 @@ static int fetch_receiving(
 {
 	char *recv_units[] = { "B", "KiB", "MiB", "GiB", "TiB", NULL };
 	char *rate_units[] = { "B/s", "KiB/s", "MiB/s", "GiB/s", "TiB/s", NULL };
+	uint64_t now, elapsed;
 
-	double now, recv_len, rate, elapsed;
+	double recv_len, rate;
 	size_t recv_unit_idx = 0, rate_unit_idx = 0;
 	bool done = (stats->received_objects == stats->total_objects);
 
 	if (!progress->action_start)
-		progress->action_start = git__timer();
+		progress->action_start = git_time_monotonic();
 
 	if (done && progress->action_finish)
 		now = progress->action_finish;
 	else if (done)
-		progress->action_finish = now = git__timer();
+		progress->action_finish = now = git_time_monotonic();
 	else
-		now = git__timer();
+		now = git_time_monotonic();
 
 	if (progress->throughput_update &&
 	    now - progress->throughput_update < THROUGHPUT_UPDATE_TIME) {

diff --git a/src/cli/progress.h b/src/cli/progress.h
@@ -30,19 +30,19 @@ typedef struct {
 	cli_progress_t action;
 
 	/* Actions may time themselves (eg fetch) but are not required to */
-	double action_start;
-	double action_finish;
+	uint64_t action_start;
+	uint64_t action_finish;
 
 	/* Last console update, avoid too frequent updates. */
-	double last_update;
+	uint64_t last_update;
 
 	/* Accumulators for partial output and deferred updates. */
 	git_str sideband;
 	git_str onscreen;
 	git_str deferred;
 
 	/* Last update about throughput */
-	double throughput_update;
+	uint64_t throughput_update;
 	double throughput_bytes;
 } cli_progress;
 

diff --git a/src/libgit2/fetch.c b/src/libgit2/fetch.c
@@ -17,7 +17,6 @@
 #include "remote.h"
 #include "refspec.h"
 #include "pack.h"
-#include "netops.h"
 #include "repository.h"
    #include "refs.h"
 #include "transports/smart.h"

diff --git a/src/libgit2/fetch.h b/src/libgit2/fetch.h
@@ -11,8 +11,6 @@
 
 #include "git2/remote.h"
 
-#include "netops.h"
-
 int git_fetch_negotiate(git_remote *remote, const git_fetch_options *opts);
 
 int git_fetch_download_pack(git_remote *remote);

diff --git a/src/libgit2/libgit2.c b/src/libgit2/libgit2.c
@@ -48,6 +48,8 @@ extern size_t git_indexer__max_objects;
 extern bool git_disable_pack_keep_file_checks;
 extern int git_odb__packed_priority;
 extern int git_odb__loose_priority;
+extern int git_socket_stream__connect_timeout;
+extern int git_socket_stream__timeout;
 
 char *git__user_agent;
 char *git__ssl_ciphers;
@@ -436,6 +438,40 @@ int git_libgit2_opts(int key, ...)
 		error = git_sysdir_set(GIT_SYSDIR_HOME, va_arg(ap, const char *));
 		break;
 
+	case GIT_OPT_GET_SERVER_CONNECT_TIMEOUT:
+		*(va_arg(ap, int *)) = git_socket_stream__connect_timeout;
+		break;
+
+	case GIT_OPT_SET_SERVER_CONNECT_TIMEOUT:
+		{
+			int timeout = va_arg(ap, int);
+
+			if (timeout < 0) {
+				git_error_set(GIT_ERROR_INVALID, "invalid connect timeout");
+				error = -1;
+			} else {
+				git_socket_stream__connect_timeout = timeout;
+			}
+		}
+		break;
+
+	case GIT_OPT_GET_SERVER_TIMEOUT:
+		*(va_arg(ap, int *)) = git_socket_stream__timeout;
+		break;
+
+	case GIT_OPT_SET_SERVER_TIMEOUT:
+		{
+			int timeout = va_arg(ap, int);
+
+			if (timeout < 0) {
+				git_error_set(GIT_ERROR_INVALID, "invalid timeout");
+				error = -1;
+			} else {
+				git_socket_stream__timeout = timeout;
+			}
+		}
+		break;
+
 	default:
 		git_error_set(GIT_ERROR_INVALID, "invalid option key");
 		error = -1;

diff --git a/src/libgit2/netops.c b/src/libgit2/netops.c