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diff --git a/compat/mingw.c b/compat/mingw.c
index ab65f77ab99500d99d24a9b7266669f37bb02cb2..a0ac487c0c12ea0e7c81485b5784e28f2115a2ea 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
#include "win32.h"
#include <conio.h>
#include "../strbuf.h"
+#include "../run-command.h"
+
+static const int delay[] = { 0, 1, 10, 20, 40 };
int err_win_to_posix(DWORD winerr)
{
return error;
}
+static inline int is_file_in_use_error(DWORD errcode)
+{
+ switch (errcode) {
+ case ERROR_SHARING_VIOLATION:
+ case ERROR_ACCESS_DENIED:
+ return 1;
+ }
+
+ return 0;
+}
+
+static int read_yes_no_answer(void)
+{
+ char answer[1024];
+
+ if (fgets(answer, sizeof(answer), stdin)) {
+ size_t answer_len = strlen(answer);
+ int got_full_line = 0, c;
+
+ /* remove the newline */
+ if (answer_len >= 2 && answer[answer_len-2] == '\r') {
+ answer[answer_len-2] = '\0';
+ got_full_line = 1;
+ } else if (answer_len >= 1 && answer[answer_len-1] == '\n') {
+ answer[answer_len-1] = '\0';
+ got_full_line = 1;
+ }
+ /* flush the buffer in case we did not get the full line */
+ if (!got_full_line)
+ while ((c = getchar()) != EOF && c != '\n')
+ ;
+ } else
+ /* we could not read, return the
+ * default answer which is no */
+ return 0;
+
+ if (tolower(answer[0]) == 'y' && !answer[1])
+ return 1;
+ if (!strncasecmp(answer, "yes", sizeof(answer)))
+ return 1;
+ if (tolower(answer[0]) == 'n' && !answer[1])
+ return 0;
+ if (!strncasecmp(answer, "no", sizeof(answer)))
+ return 0;
+
+ /* did not find an answer we understand */
+ return -1;
+}
+
+static int ask_yes_no_if_possible(const char *format, ...)
+{
+ char question[4096];
+ const char *retry_hook[] = { NULL, NULL, NULL };
+ va_list args;
+
+ va_start(args, format);
+ vsnprintf(question, sizeof(question), format, args);
+ va_end(args);
+
+ if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) {
+ retry_hook[1] = question;
+ return !run_command_v_opt(retry_hook, 0);
+ }
+
+ if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr)))
+ return 0;
+
+ while (1) {
+ int answer;
+ fprintf(stderr, "%s (y/n) ", question);
+
+ if ((answer = read_yes_no_answer()) >= 0)
+ return answer;
+
+ fprintf(stderr, "Sorry, I did not understand your answer. "
+ "Please type 'y' or 'n'\n");
+ }
+}
+
+#undef unlink
+int mingw_unlink(const char *pathname)
+{
+ int ret, tries = 0;
+
+ /* read-only files cannot be removed */
+ chmod(pathname, 0666);
+ while ((ret = unlink(pathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+ if (!is_file_in_use_error(GetLastError()))
+ break;
+ /*
+ * We assume that some other process had the source or
+ * destination file open at the wrong moment and retry.
+ * In order to give the other process a higher chance to
+ * complete its operation, we give up our time slice now.
+ * If we have to retry again, we do sleep a bit.
+ */
+ Sleep(delay[tries]);
+ tries++;
+ }
+ while (ret == -1 && is_file_in_use_error(GetLastError()) &&
+ ask_yes_no_if_possible("Unlink of file '%s' failed. "
+ "Should I try again?", pathname))
+ ret = unlink(pathname);
+ return ret;
+}
+
+static int is_dir_empty(const char *path)
+{
+ struct strbuf buf = STRBUF_INIT;
+ WIN32_FIND_DATAA findbuf;
+ HANDLE handle;
+
+ strbuf_addf(&buf, "%s\\*", path);
+ handle = FindFirstFileA(buf.buf, &findbuf);
+ if (handle == INVALID_HANDLE_VALUE) {
+ strbuf_release(&buf);
+ return GetLastError() == ERROR_NO_MORE_FILES;
+ }
+
+ while (!strcmp(findbuf.cFileName, ".") ||
+ !strcmp(findbuf.cFileName, ".."))
+ if (!FindNextFile(handle, &findbuf)) {
+ strbuf_release(&buf);
+ return GetLastError() == ERROR_NO_MORE_FILES;
+ }
+ FindClose(handle);
+ strbuf_release(&buf);
+ return 0;
+}
+
+#undef rmdir
+int mingw_rmdir(const char *pathname)
+{
+ int ret, tries = 0;
+
+ while ((ret = rmdir(pathname)) == -1 && tries < ARRAY_SIZE(delay)) {
+ if (!is_file_in_use_error(GetLastError()))
+ break;
+ if (!is_dir_empty(pathname)) {
+ errno = ENOTEMPTY;
+ break;
+ }
+ /*
+ * We assume that some other process had the source or
+ * destination file open at the wrong moment and retry.
+ * In order to give the other process a higher chance to
+ * complete its operation, we give up our time slice now.
+ * If we have to retry again, we do sleep a bit.
+ */
+ Sleep(delay[tries]);
+ tries++;
+ }
+ while (ret == -1 && is_file_in_use_error(GetLastError()) &&
+ ask_yes_no_if_possible("Deletion of directory '%s' failed. "
+ "Should I try again?", pathname))
+ ret = rmdir(pathname);
+ return ret;
+}
+
#undef open
int mingw_open (const char *filename, int oflags, ...)
{
mode = va_arg(args, int);
va_end(args);
- if (!strcmp(filename, "/dev/null"))
+ if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
fd = open(filename, oflags, mode);
return fd;
}
+#undef write
+ssize_t mingw_write(int fd, const void *buf, size_t count)
+{
+ /*
+ * While write() calls to a file on a local disk are translated
+ * into WriteFile() calls with a maximum size of 64KB on Windows
+ * XP and 256KB on Vista, no such cap is placed on writes to
+ * files over the network on Windows XP. Unfortunately, there
+ * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
+ * bigger writes fail on Windows XP.
+ * So we cap to a nice 31MB here to avoid write failures over
+ * the net without changing the number of WriteFile() calls in
+ * the local case.
+ */
+ return write(fd, buf, min(count, 31 * 1024 * 1024));
+}
+
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *otype)
+{
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return fopen(filename, otype);
+}
+
+#undef freopen
+FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
+{
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return freopen(filename, otype, stream);
+}
+
/*
* The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
* Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
/* We keep the do_lstat code in a separate function to avoid recursion.
* When a path ends with a slash, the stat will fail with ENOENT. In
* this case, we strip the trailing slashes and stat again.
+ *
+ * If follow is true then act like stat() and report on the link
+ * target. Otherwise report on the link itself.
*/
-static int do_lstat(const char *file_name, struct stat *buf)
+static int do_lstat(int follow, const char *file_name, struct stat *buf)
{
+ int err;
WIN32_FILE_ATTRIBUTE_DATA fdata;
- if (!(errno = get_file_attr(file_name, &fdata))) {
+ if (!(err = get_file_attr(file_name, &fdata))) {
buf->st_ino = 0;
buf->st_gid = 0;
buf->st_uid = 0;
buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
+ if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+ WIN32_FIND_DATAA findbuf;
+ HANDLE handle = FindFirstFileA(file_name, &findbuf);
+ if (handle != INVALID_HANDLE_VALUE) {
+ if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
+ (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
+ if (follow) {
+ char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
+ buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
+ } else {
+ buf->st_mode = S_IFLNK;
+ }
+ buf->st_mode |= S_IREAD;
+ if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
+ buf->st_mode |= S_IWRITE;
+ }
+ FindClose(handle);
+ }
+ }
return 0;
}
+ errno = err;
return -1;
}
* complete. Note that Git stat()s are redirected to mingw_lstat()
* too, since Windows doesn't really handle symlinks that well.
*/
-int mingw_lstat(const char *file_name, struct stat *buf)
+static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
{
int namelen;
static char alt_name[PATH_MAX];
- if (!do_lstat(file_name, buf))
+ if (!do_lstat(follow, file_name, buf))
return 0;
/* if file_name ended in a '/', Windows returned ENOENT;
memcpy(alt_name, file_name, namelen);
alt_name[namelen] = 0;
- return do_lstat(alt_name, buf);
+ return do_lstat(follow, alt_name, buf);
+}
+
+int mingw_lstat(const char *file_name, struct stat *buf)
+{
+ return do_stat_internal(0, file_name, buf);
+}
+int mingw_stat(const char *file_name, struct stat *buf)
+{
+ return do_stat_internal(1, file_name, buf);
}
#undef fstat
int fh, rc;
/* must have write permission */
- if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
- return -1;
+ DWORD attrs = GetFileAttributes(file_name);
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors here; open() will report them */
+ SetFileAttributes(file_name, attrs & ~FILE_ATTRIBUTE_READONLY);
+ }
+
+ if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) {
+ rc = -1;
+ goto revert_attrs;
+ }
- time_t_to_filetime(times->modtime, &mft);
- time_t_to_filetime(times->actime, &aft);
+ if (times) {
+ time_t_to_filetime(times->modtime, &mft);
+ time_t_to_filetime(times->actime, &aft);
+ } else {
+ GetSystemTimeAsFileTime(&mft);
+ aft = mft;
+ }
if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
errno = EINVAL;
rc = -1;
} else
rc = 0;
close(fh);
+
+revert_attrs:
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors again */
+ SetFileAttributes(file_name, attrs);
+ }
return rc;
}
return 0;
}
-int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
-{
- int i, pending;
-
- if (timeout >= 0) {
- if (nfds == 0) {
- Sleep(timeout);
- return 0;
- }
- return errno = EINVAL, error("poll timeout not supported");
- }
-
- /* When there is only one fd to wait for, then we pretend that
- * input is available and let the actual wait happen when the
- * caller invokes read().
- */
- if (nfds == 1) {
- if (!(ufds[0].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
- ufds[0].revents = POLLIN;
- return 0;
- }
-
-repeat:
- pending = 0;
- for (i = 0; i < nfds; i++) {
- DWORD avail = 0;
- HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
- if (h == INVALID_HANDLE_VALUE)
- return -1; /* errno was set */
-
- if (!(ufds[i].events & POLLIN))
- return errno = EINVAL, error("POLLIN not set");
-
- /* this emulation works only for pipes */
- if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
- int err = GetLastError();
- if (err == ERROR_BROKEN_PIPE) {
- ufds[i].revents = POLLHUP;
- pending++;
- } else {
- errno = EINVAL;
- return error("PeekNamedPipe failed,"
- " GetLastError: %u", err);
- }
- } else if (avail) {
- ufds[i].revents = POLLIN;
- pending++;
- } else
- ufds[i].revents = 0;
- }
- if (!pending) {
- /* The only times that we spin here is when the process
- * that is connected through the pipes is waiting for
- * its own input data to become available. But since
- * the process (pack-objects) is itself CPU intensive,
- * it will happily pick up the time slice that we are
- * relinquishing here.
- */
- Sleep(0);
- goto repeat;
- }
- return 0;
-}
-
struct tm *gmtime_r(const time_t *timep, struct tm *result)
{
/* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
return ret;
}
-#undef getenv
-char *mingw_getenv(const char *name)
-{
- char *result = getenv(name);
- if (!result && !strcmp(name, "TMPDIR")) {
- /* on Windows it is TMP and TEMP */
- result = getenv("TMP");
- if (!result)
- result = getenv("TEMP");
- }
- return result;
-}
-
/*
* See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
* (Parsing C++ Command-Line Arguments)
*/
static char **get_path_split(void)
{
- char *p, **path, *envpath = getenv("PATH");
+ char *p, **path, *envpath = mingw_getenv("PATH");
int i, n = 0;
if (!envpath || !*envpath)
@@ -592,7 +763,7 @@ static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_on
}
/*
- * Determines the absolute path of cmd using the the split path in path.
+ * Determines the absolute path of cmd using the split path in path.
* If cmd contains a slash or backslash, no lookup is performed.
*/
static char *path_lookup(const char *cmd, char **path, int exe_only)
return strcasecmp(*ea, *eb);
}
+struct pinfo_t {
+ struct pinfo_t *next;
+ pid_t pid;
+ HANDLE proc;
+} pinfo_t;
+struct pinfo_t *pinfo = NULL;
+CRITICAL_SECTION pinfo_cs;
+
static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
+ const char *dir,
int prepend_cmd, int fhin, int fhout, int fherr)
{
STARTUPINFO si;
memset(&pi, 0, sizeof(pi));
ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
- env ? envblk.buf : NULL, NULL, &si, &pi);
+ env ? envblk.buf : NULL, dir, &si, &pi);
if (env)
strbuf_release(&envblk);
return -1;
}
CloseHandle(pi.hThread);
- return (pid_t)pi.hProcess;
+
+ /*
+ * The process ID is the human-readable identifier of the process
+ * that we want to present in log and error messages. The handle
+ * is not useful for this purpose. But we cannot close it, either,
+ * because it is not possible to turn a process ID into a process
+ * handle after the process terminated.
+ * Keep the handle in a list for waitpid.
+ */
+ EnterCriticalSection(&pinfo_cs);
+ {
+ struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
+ info->pid = pi.dwProcessId;
+ info->proc = pi.hProcess;
+ info->next = pinfo;
+ pinfo = info;
+ }
+ LeaveCriticalSection(&pinfo_cs);
+
+ return (pid_t)pi.dwProcessId;
}
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);
+ return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2);
}
pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ const char *dir,
int fhin, int fhout, int fherr)
{
pid_t pid;
pid = -1;
}
else {
- pid = mingw_spawnve_fd(iprog, argv, env, 1,
+ pid = mingw_spawnve_fd(iprog, argv, env, dir, 1,
fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve_fd(prog, argv, env, 0,
+ pid = mingw_spawnve_fd(prog, argv, env, dir, 0,
fhin, fhout, fherr);
free(prog);
}
free_path_split(path);
}
+void mingw_execv(const char *cmd, char *const *argv)
+{
+ mingw_execve(cmd, argv, environ);
+}
+
+int mingw_kill(pid_t pid, int sig)
+{
+ if (pid > 0 && sig == SIGTERM) {
+ HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
+
+ if (TerminateProcess(h, -1)) {
+ CloseHandle(h);
+ return 0;
+ }
+
+ errno = err_win_to_posix(GetLastError());
+ CloseHandle(h);
+ return -1;
+ }
+
+ errno = EINVAL;
+ return -1;
+}
+
static char **copy_environ(void)
{
char **env;
return env;
}
+#undef getenv
+
+/*
+ * The system's getenv looks up the name in a case-insensitive manner.
+ * This version tries a case-sensitive lookup and falls back to
+ * case-insensitive if nothing was found. This is necessary because,
+ * as a prominent example, CMD sets 'Path', but not 'PATH'.
+ * Warning: not thread-safe.
+ */
+static char *getenv_cs(const char *name)
+{
+ size_t len = strlen(name);
+ int i = lookup_env(environ, name, len);
+ if (i >= 0)
+ return environ[i] + len + 1; /* skip past name and '=' */
+ return getenv(name);
+}
+
+char *mingw_getenv(const char *name)
+{
+ char *result = getenv_cs(name);
+ if (!result && !strcmp(name, "TMPDIR")) {
+ /* on Windows it is TMP and TEMP */
+ result = getenv_cs("TMP");
+ if (!result)
+ result = getenv_cs("TEMP");
+ }
+ return result;
+}
+
/*
* Note, this isn't a complete replacement for getaddrinfo. It assumes
- * that service contains a numerical port, or that it it is null. It
+ * that service contains a numerical port, or that it is null. It
* does a simple search using gethostbyname, and returns one IPv4 host
* if one was found.
*/
const struct addrinfo *hints,
struct addrinfo **res)
{
- struct hostent *h = gethostbyname(node);
+ struct hostent *h = NULL;
struct addrinfo *ai;
struct sockaddr_in *sin;
- if (!h)
- return WSAGetLastError();
+ if (node) {
+ h = gethostbyname(node);
+ if (!h)
+ return WSAGetLastError();
+ }
ai = xmalloc(sizeof(struct addrinfo));
*res = ai;
ai->ai_flags = 0;
ai->ai_family = AF_INET;
- ai->ai_socktype = hints->ai_socktype;
- switch (hints->ai_socktype) {
+ ai->ai_socktype = hints ? hints->ai_socktype : 0;
+ switch (ai->ai_socktype) {
case SOCK_STREAM:
ai->ai_protocol = IPPROTO_TCP;
break;
break;
}
ai->ai_addrlen = sizeof(struct sockaddr_in);
- ai->ai_canonname = strdup(h->h_name);
+ if (hints && (hints->ai_flags & AI_CANONNAME))
+ ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
+ else
+ ai->ai_canonname = NULL;
sin = xmalloc(ai->ai_addrlen);
memset(sin, 0, ai->ai_addrlen);
sin->sin_family = AF_INET;
+ /* Note: getaddrinfo is supposed to allow service to be a string,
+ * which should be looked up using getservbyname. This is
+ * currently not implemented */
if (service)
sin->sin_port = htons(atoi(service));
- sin->sin_addr = *(struct in_addr *)h->h_addr;
+ if (h)
+ sin->sin_addr = *(struct in_addr *)h->h_addr;
+ else if (hints && (hints->ai_flags & AI_PASSIVE))
+ sin->sin_addr.s_addr = INADDR_ANY;
+ else
+ sin->sin_addr.s_addr = INADDR_LOOPBACK;
ai->ai_addr = (struct sockaddr *)sin;
ai->ai_next = 0;
return 0;
initialized = 1;
}
+#undef gethostname
+int mingw_gethostname(char *name, int namelen)
+{
+ ensure_socket_initialization();
+ return gethostname(name, namelen);
+}
+
#undef gethostbyname
struct hostent *mingw_gethostbyname(const char *host)
{
int mingw_socket(int domain, int type, int protocol)
{
int sockfd;
- SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
+ SOCKET s;
+
+ ensure_socket_initialization();
+ s = WSASocket(domain, type, protocol, NULL, 0, 0);
if (s == INVALID_SOCKET) {
/*
* WSAGetLastError() values are regular BSD error codes
return connect(s, sa, sz);
}
+#undef bind
+int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return bind(s, sa, sz);
+}
+
+#undef setsockopt
+int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return setsockopt(s, lvl, optname, (const char*)optval, optlen);
+}
+
+#undef shutdown
+int mingw_shutdown(int sockfd, int how)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return shutdown(s, how);
+}
+
+#undef listen
+int mingw_listen(int sockfd, int backlog)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return listen(s, backlog);
+}
+
+#undef accept
+int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
+{
+ int sockfd2;
+
+ SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
+ SOCKET s2 = accept(s1, sa, sz);
+
+ /* convert into a file descriptor */
+ if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
+ int err = errno;
+ closesocket(s2);
+ return error("unable to make a socket file descriptor: %s",
+ strerror(err));
+ }
+ return sockfd2;
+}
+
#undef rename
int mingw_rename(const char *pold, const char *pnew)
{
DWORD attrs, gle;
int tries = 0;
- static const int delay[] = { 0, 1, 10, 20, 40 };
/*
* Try native rename() first to get errno right.
tries++;
goto repeat;
}
+ if (gle == ERROR_ACCESS_DENIED &&
+ ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
+ "Should I try again?", pold, pnew))
+ goto repeat;
+
errno = EACCES;
return -1;
}
const char *, const char *, const char *, INT);
T ShellExecute;
HMODULE shell32;
+ int r;
shell32 = LoadLibrary("shell32.dll");
if (!shell32)
die("cannot run browser");
printf("Launching default browser to display HTML ...\n");
- ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
-
+ r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
FreeLibrary(shell32);
+ /* see the MSDN documentation referring to the result codes here */
+ if (r <= 32) {
+ die("failed to launch browser for %.*s", MAX_PATH, unixpath);
+ }
}
int link(const char *oldpath, const char *newpath)
return strbuf_detach(&buf, NULL);
}
-#ifndef NO_MINGW_REPLACE_READDIR
-/* MinGW readdir implementation to avoid extra lstats for Git */
-struct mingw_DIR
+pid_t waitpid(pid_t pid, int *status, int options)
{
- struct _finddata_t dd_dta; /* disk transfer area for this dir */
- struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
- long dd_handle; /* _findnext handle */
- int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
- char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
-};
-
-struct dirent *mingw_readdir(DIR *dir)
-{
- WIN32_FIND_DATAA buf;
- HANDLE handle;
- struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
-
- if (!dir->dd_handle) {
- errno = EBADF; /* No set_errno for mingw */
- return NULL;
+ HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
+ FALSE, pid);
+ if (!h) {
+ errno = ECHILD;
+ return -1;
}
- if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
- {
- DWORD lasterr;
- handle = FindFirstFileA(dir->dd_name, &buf);
- lasterr = GetLastError();
- dir->dd_handle = (long)handle;
- if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
- errno = err_win_to_posix(lasterr);
- return NULL;
+ if (pid > 0 && options & WNOHANG) {
+ if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
+ CloseHandle(h);
+ return 0;
}
- } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
- return NULL;
- } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
- DWORD lasterr = GetLastError();
- FindClose((HANDLE)dir->dd_handle);
- dir->dd_handle = (long)INVALID_HANDLE_VALUE;
- /* POSIX says you shouldn't set errno when readdir can't
- find any more files; so, if another error we leave it set. */
- if (lasterr != ERROR_NO_MORE_FILES)
- errno = err_win_to_posix(lasterr);
- return NULL;
+ options &= ~WNOHANG;
}
- /* We get here if `buf' contains valid data. */
- strcpy(dir->dd_dir.d_name, buf.cFileName);
- ++dir->dd_stat;
+ if (options == 0) {
+ struct pinfo_t **ppinfo;
+ if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
+ CloseHandle(h);
+ return 0;
+ }
- /* Set file type, based on WIN32_FIND_DATA */
- mdir->dd_dir.d_type = 0;
- if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- mdir->dd_dir.d_type |= DT_DIR;
- else
- mdir->dd_dir.d_type |= DT_REG;
+ if (status)
+ GetExitCodeProcess(h, (LPDWORD)status);
+
+ EnterCriticalSection(&pinfo_cs);
- return (struct dirent*)&dir->dd_dir;
+ ppinfo = &pinfo;
+ while (*ppinfo) {
+ struct pinfo_t *info = *ppinfo;
+ if (info->pid == pid) {
+ CloseHandle(info->proc);
+ *ppinfo = info->next;
+ free(info);
+ break;
+ }
+ ppinfo = &info->next;
+ }
+
+ LeaveCriticalSection(&pinfo_cs);
+
+ CloseHandle(h);
+ return pid;
+ }
+ CloseHandle(h);
+
+ errno = EINVAL;
+ return -1;
}
-#endif // !NO_MINGW_REPLACE_READDIR