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-rw-r--r--compat/mingw.c116
-rw-r--r--compat/mingw.h12
-rw-r--r--compat/msvc.h40
-rw-r--r--compat/win32/pthread.c110
-rw-r--r--compat/win32/pthread.h67
5 files changed, 262 insertions, 83 deletions
diff --git a/compat/mingw.c b/compat/mingw.c
index 0d73f15fa8..ab65f77ab9 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -3,9 +3,7 @@
#include <conio.h>
#include "../strbuf.h"
-#include <shellapi.h>
-
-static int err_win_to_posix(DWORD winerr)
+int err_win_to_posix(DWORD winerr)
{
int error = ENOSYS;
switch(winerr) {
@@ -142,12 +140,20 @@ int mingw_open (const char *filename, int oflags, ...)
return fd;
}
-static inline time_t filetime_to_time_t(const FILETIME *ft)
+/*
+ * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
+ * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
+ */
+static inline long long filetime_to_hnsec(const FILETIME *ft)
{
long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
- winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
- winTime /= 10000000; /* Nano to seconds resolution */
- return (time_t)winTime;
+ /* Windows to Unix Epoch conversion */
+ return winTime - 116444736000000000LL;
+}
+
+static inline time_t filetime_to_time_t(const FILETIME *ft)
+{
+ return (time_t)(filetime_to_hnsec(ft) / 10000000);
}
/* We keep the do_lstat code in a separate function to avoid recursion.
@@ -283,64 +289,37 @@ int mkstemp(char *template)
int gettimeofday(struct timeval *tv, void *tz)
{
- SYSTEMTIME st;
- struct tm tm;
- GetSystemTime(&st);
- tm.tm_year = st.wYear-1900;
- tm.tm_mon = st.wMonth-1;
- tm.tm_mday = st.wDay;
- tm.tm_hour = st.wHour;
- tm.tm_min = st.wMinute;
- tm.tm_sec = st.wSecond;
- tv->tv_sec = tm_to_time_t(&tm);
- if (tv->tv_sec < 0)
- return -1;
- tv->tv_usec = st.wMilliseconds*1000;
+ FILETIME ft;
+ long long hnsec;
+
+ GetSystemTimeAsFileTime(&ft);
+ hnsec = filetime_to_hnsec(&ft);
+ tv->tv_sec = hnsec / 10000000;
+ tv->tv_usec = (hnsec % 10000000) / 10;
return 0;
}
int pipe(int filedes[2])
{
- int fd;
- HANDLE h[2], parent;
+ HANDLE h[2];
- if (_pipe(filedes, 8192, 0) < 0)
- return -1;
-
- parent = GetCurrentProcess();
-
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
- parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- return -1;
- }
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
- parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- CloseHandle(h[0]);
+ /* this creates non-inheritable handles */
+ if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
+ errno = err_win_to_posix(GetLastError());
return -1;
}
- fd = _open_osfhandle((int)h[0], O_NOINHERIT);
- if (fd < 0) {
- close(filedes[0]);
- close(filedes[1]);
+ filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
+ if (filedes[0] < 0) {
CloseHandle(h[0]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[0]);
- filedes[0] = fd;
- fd = _open_osfhandle((int)h[1], O_NOINHERIT);
- if (fd < 0) {
+ filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
+ if (filedes[0] < 0) {
close(filedes[0]);
- close(filedes[1]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[1]);
- filedes[1] = fd;
return 0;
}
@@ -638,8 +617,8 @@ static int env_compare(const void *a, const void *b)
return strcasecmp(*ea, *eb);
}
-static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
- int prepend_cmd)
+static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
+ int prepend_cmd, int fhin, int fhout, int fherr)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
@@ -675,9 +654,9 @@ static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESTDHANDLES;
- si.hStdInput = (HANDLE) _get_osfhandle(0);
- si.hStdOutput = (HANDLE) _get_osfhandle(1);
- si.hStdError = (HANDLE) _get_osfhandle(2);
+ si.hStdInput = (HANDLE) _get_osfhandle(fhin);
+ si.hStdOutput = (HANDLE) _get_osfhandle(fhout);
+ si.hStdError = (HANDLE) _get_osfhandle(fherr);
/* concatenate argv, quoting args as we go */
strbuf_init(&args, 0);
@@ -732,7 +711,14 @@ static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
return (pid_t)pi.hProcess;
}
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
+static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
+ int prepend_cmd)
+{
+ return mingw_spawnve_fd(cmd, argv, env, prepend_cmd, 0, 1, 2);
+}
+
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ int fhin, int fhout, int fherr)
{
pid_t pid;
char **path = get_path_split();
@@ -754,13 +740,15 @@ pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
pid = -1;
}
else {
- pid = mingw_spawnve(iprog, argv, env, 1);
+ pid = mingw_spawnve_fd(iprog, argv, env, 1,
+ fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve(prog, argv, env, 0);
+ pid = mingw_spawnve_fd(prog, argv, env, 0,
+ fhin, fhout, fherr);
free(prog);
}
free_path_split(path);
@@ -1338,8 +1326,22 @@ static const char *make_backslash_path(const char *path)
void mingw_open_html(const char *unixpath)
{
const char *htmlpath = make_backslash_path(unixpath);
+ typedef HINSTANCE (WINAPI *T)(HWND, const char *,
+ const char *, const char *, const char *, INT);
+ T ShellExecute;
+ HMODULE shell32;
+
+ shell32 = LoadLibrary("shell32.dll");
+ if (!shell32)
+ die("cannot load shell32.dll");
+ ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
+ if (!ShellExecute)
+ die("cannot run browser");
+
printf("Launching default browser to display HTML ...\n");
ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
+
+ FreeLibrary(shell32);
}
int link(const char *oldpath, const char *newpath)
diff --git a/compat/mingw.h b/compat/mingw.h
index b3d299f5bc..e254fb4e06 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -209,18 +209,21 @@ int mingw_getpagesize(void);
* mingw_fstat() instead of fstat() on Windows.
*/
#define off_t off64_t
-#define stat _stati64
#define lseek _lseeki64
+#ifndef ALREADY_DECLARED_STAT_FUNCS
+#define stat _stati64
int mingw_lstat(const char *file_name, struct stat *buf);
int mingw_fstat(int fd, struct stat *buf);
#define fstat mingw_fstat
#define lstat mingw_lstat
#define _stati64(x,y) mingw_lstat(x,y)
+#endif
int mingw_utime(const char *file_name, const struct utimbuf *times);
#define utime mingw_utime
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ int fhin, int fhout, int fherr);
void mingw_execvp(const char *cmd, char *const *argv);
#define execvp mingw_execvp
@@ -307,3 +310,8 @@ struct mingw_dirent
#define readdir(x) mingw_readdir(x)
struct dirent *mingw_readdir(DIR *dir);
#endif // !NO_MINGW_REPLACE_READDIR
+
+/*
+ * Used by Pthread API implementation for Windows
+ */
+extern int err_win_to_posix(DWORD winerr);
diff --git a/compat/msvc.h b/compat/msvc.h
index 9c753a560f..023aba0238 100644
--- a/compat/msvc.h
+++ b/compat/msvc.h
@@ -21,30 +21,22 @@ static __inline int strcasecmp (const char *s1, const char *s2)
}
#undef ERROR
-#undef stat
-#undef _stati64
-#include "compat/mingw.h"
-#undef stat
-#define stat _stati64
+
+/* Use mingw_lstat() instead of lstat()/stat() and mingw_fstat() instead
+ * of fstat(). We add the declaration of these functions here, suppressing
+ * the corresponding declarations in mingw.h, so that we can use the
+ * appropriate structure type (and function) names from the msvc headers.
+ */
+#define stat _stat64
+int mingw_lstat(const char *file_name, struct stat *buf);
+int mingw_fstat(int fd, struct stat *buf);
+#define fstat mingw_fstat
+#define lstat mingw_lstat
#define _stat64(x,y) mingw_lstat(x,y)
+#define ALREADY_DECLARED_STAT_FUNCS
+
+#include "compat/mingw.h"
+
+#undef ALREADY_DECLARED_STAT_FUNCS
-/*
- Even though _stati64 is normally just defined at _stat64
- on Windows, we specify it here as a proper struct to avoid
- compiler warnings about macro redefinition due to magic in
- mingw.h. Struct taken from ReactOS (GNU GPL license).
-*/
-struct _stati64 {
- _dev_t st_dev;
- _ino_t st_ino;
- unsigned short st_mode;
- short st_nlink;
- short st_uid;
- short st_gid;
- _dev_t st_rdev;
- __int64 st_size;
- time_t st_atime;
- time_t st_mtime;
- time_t st_ctime;
-};
#endif
diff --git a/compat/win32/pthread.c b/compat/win32/pthread.c
new file mode 100644
index 0000000000..631c0a46ea
--- /dev/null
+++ b/compat/win32/pthread.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com>
+ *
+ * DISCLAMER: The implementation is Git-specific, it is subset of original
+ * Pthreads API, without lots of other features that Git doesn't use.
+ * Git also makes sure that the passed arguments are valid, so there's
+ * no need for double-checking.
+ */
+
+#include "../../git-compat-util.h"
+#include "pthread.h"
+
+#include <errno.h>
+#include <limits.h>
+
+static unsigned __stdcall win32_start_routine(void *arg)
+{
+ pthread_t *thread = arg;
+ thread->arg = thread->start_routine(thread->arg);
+ return 0;
+}
+
+int pthread_create(pthread_t *thread, const void *unused,
+ void *(*start_routine)(void*), void *arg)
+{
+ thread->arg = arg;
+ thread->start_routine = start_routine;
+ thread->handle = (HANDLE)
+ _beginthreadex(NULL, 0, win32_start_routine, thread, 0, NULL);
+
+ if (!thread->handle)
+ return errno;
+ else
+ return 0;
+}
+
+int win32_pthread_join(pthread_t *thread, void **value_ptr)
+{
+ DWORD result = WaitForSingleObject(thread->handle, INFINITE);
+ switch (result) {
+ case WAIT_OBJECT_0:
+ if (value_ptr)
+ *value_ptr = thread->arg;
+ return 0;
+ case WAIT_ABANDONED:
+ return EINVAL;
+ default:
+ return err_win_to_posix(GetLastError());
+ }
+}
+
+int pthread_cond_init(pthread_cond_t *cond, const void *unused)
+{
+ cond->waiters = 0;
+
+ cond->sema = CreateSemaphore(NULL, 0, LONG_MAX, NULL);
+ if (!cond->sema)
+ die("CreateSemaphore() failed");
+ return 0;
+}
+
+int pthread_cond_destroy(pthread_cond_t *cond)
+{
+ CloseHandle(cond->sema);
+ cond->sema = NULL;
+
+ return 0;
+}
+
+int pthread_cond_wait(pthread_cond_t *cond, CRITICAL_SECTION *mutex)
+{
+ InterlockedIncrement(&cond->waiters);
+
+ /*
+ * Unlock external mutex and wait for signal.
+ * NOTE: we've held mutex locked long enough to increment
+ * waiters count above, so there's no problem with
+ * leaving mutex unlocked before we wait on semaphore.
+ */
+ LeaveCriticalSection(mutex);
+
+ /* let's wait - ignore return value */
+ WaitForSingleObject(cond->sema, INFINITE);
+
+ /* we're done waiting, so make sure we decrease waiters count */
+ InterlockedDecrement(&cond->waiters);
+
+ /* lock external mutex again */
+ EnterCriticalSection(mutex);
+
+ return 0;
+}
+
+int pthread_cond_signal(pthread_cond_t *cond)
+{
+ /*
+ * Access to waiters count is atomic; see "Interlocked Variable Access"
+ * http://msdn.microsoft.com/en-us/library/ms684122(VS.85).aspx
+ */
+ int have_waiters = cond->waiters > 0;
+
+ /*
+ * Signal only when there are waiters
+ */
+ if (have_waiters)
+ return ReleaseSemaphore(cond->sema, 1, NULL) ?
+ 0 : err_win_to_posix(GetLastError());
+ else
+ return 0;
+}
diff --git a/compat/win32/pthread.h b/compat/win32/pthread.h
new file mode 100644
index 0000000000..b8e1bcb046
--- /dev/null
+++ b/compat/win32/pthread.h
@@ -0,0 +1,67 @@
+/*
+ * Header used to adapt pthread-based POSIX code to Windows API threads.
+ *
+ * Copyright (C) 2009 Andrzej K. Haczewski <ahaczewski@gmail.com>
+ */
+
+#ifndef PTHREAD_H
+#define PTHREAD_H
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <windows.h>
+
+/*
+ * Defines that adapt Windows API threads to pthreads API
+ */
+#define pthread_mutex_t CRITICAL_SECTION
+
+#define pthread_mutex_init(a,b) InitializeCriticalSection((a))
+#define pthread_mutex_destroy(a) DeleteCriticalSection((a))
+#define pthread_mutex_lock EnterCriticalSection
+#define pthread_mutex_unlock LeaveCriticalSection
+
+/*
+ * Implement simple condition variable for Windows threads, based on ACE
+ * implementation.
+ *
+ * See original implementation: http://bit.ly/1vkDjo
+ * ACE homepage: http://www.cse.wustl.edu/~schmidt/ACE.html
+ * See also: http://www.cse.wustl.edu/~schmidt/win32-cv-1.html
+ */
+typedef struct {
+ volatile LONG waiters;
+ HANDLE sema;
+} pthread_cond_t;
+
+extern int pthread_cond_init(pthread_cond_t *cond, const void *unused);
+
+extern int pthread_cond_destroy(pthread_cond_t *cond);
+
+extern int pthread_cond_wait(pthread_cond_t *cond, CRITICAL_SECTION *mutex);
+
+extern int pthread_cond_signal(pthread_cond_t *cond);
+
+/*
+ * Simple thread creation implementation using pthread API
+ */
+typedef struct {
+ HANDLE handle;
+ void *(*start_routine)(void*);
+ void *arg;
+} pthread_t;
+
+extern int pthread_create(pthread_t *thread, const void *unused,
+ void *(*start_routine)(void*), void *arg);
+
+/*
+ * To avoid the need of copying a struct, we use small macro wrapper to pass
+ * pointer to win32_pthread_join instead.
+ */
+#define pthread_join(a, b) win32_pthread_join(&(a), (b))
+
+extern int win32_pthread_join(pthread_t *thread, void **value_ptr);
+
+#endif /* PTHREAD_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 20:42:43 +0000