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Implement first version of directory listing library on Windows.

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R=sgjesse@google.com
BUG=
TEST=

Review URL: https://chromereviews.googleplex.com/3543018

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@123 260f80e4-7a28-3924-810f-c04153c831b5
This commit is contained in:
ager@google.com
2011-10-06 14:28:05 +00:00
parent 885419a1bb
commit 30ede18056
1 changed files with 101 additions and 6 deletions
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runtime/bin/directory_win.cc
+101 -6
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@@ -5,21 +5,116 @@
#include "bin/directory.h"
bool Directory::Open(const char* path, intptr_t* dir) {
UNIMPLEMENTED();
return false;
return true;
}
bool Directory::Close(intptr_t dir) {
UNIMPLEMENTED();
return false;
return true;
}
void Directory::List(const char* path,
static void HandleDir(char* dir_name,
char* path,
int path_length,
Dart_Port dir_handler) {
if (dir_handler != 0 &&
strcmp(dir_name, ".") != 0 &&
strcmp(dir_name, "..") != 0) {
size_t written = snprintf(path + path_length,
MAX_PATH - path_length,
"%s",
dir_name);
ASSERT(written == strlen(dir_name));
Dart_Handle name = Dart_NewString(path);
Dart_Post(dir_handler, name);
}
}
static void HandleFile(char* file_name,
char* path,
int path_length,
Dart_Port file_handler) {
if (file_handler != 0) {
size_t written = snprintf(path + path_length,
MAX_PATH - path_length,
"%s",
file_name);
ASSERT(written == strlen(file_name));
Dart_Handle name = Dart_NewString(path);
Dart_Post(file_handler, name);
}
}
static void HandleEntry(LPWIN32_FIND_DATA find_file_data,
char* path,
int path_length,
Dart_Port file_handler,
Dart_Port dir_handler) {
DWORD attributes = find_file_data->dwFileAttributes;
if ((attributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
HandleDir(find_file_data->cFileName, path, path_length, dir_handler);
} else {
HandleFile(find_file_data->cFileName, path, path_length, file_handler);
}
}
static void ComputeFullSearchPath(const char* dir_name,
char* path,
int* path_length) {
// GetFullPathName only works in a multi-threaded environment if
// SetCurrentDirectory is not used. We currently have no plan for
// exposing SetCurrentDirectory.
int written =
GetFullPathName(dir_name, MAX_PATH - *path_length, path, NULL);
*path_length += written;
written = snprintf(path + *path_length,
MAX_PATH - *path_length,
"%s",
"\\*");
ASSERT(written == 2);
*path_length += written;
}
void Directory::List(const char* dir_name,
intptr_t dir,
bool recursive,
Dart_Port dir_handler,
Dart_Port file_handler,
Dart_Port done_handler,
Dart_Port dir_error_handler) {
UNIMPLEMENTED();
// TODO(ager): Handle recursive listing.
char path[MAX_PATH];
int path_length = 0;
ComputeFullSearchPath(dir_name, path, &path_length);
WIN32_FIND_DATA find_file_data;
HANDLE find_handle = FindFirstFile(path, &find_file_data);
// Adjust the path by removing the '*' used for the search.
path_length -= 1;
path[path_length] = '\0';
if (find_handle == INVALID_HANDLE_VALUE) {
Dart_Handle value = Dart_NewBoolean(false);
Dart_Post(done_handler, value);
return;
}
HandleEntry(&find_file_data, path, path_length, file_handler, dir_handler);
while (FindNextFile(find_handle, &find_file_data) != 0) {
HandleEntry(&find_file_data, path, path_length, file_handler, dir_handler);
}
bool result = GetLastError() == ERROR_NO_MORE_FILES;
BOOL closed = FindClose(find_handle);
if (!closed) {
result = false;
}
Dart_Handle value = Dart_NewBoolean(result);
Dart_Post(done_handler, value);
}