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Update error handling for os2 on windows

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This commit is contained in:
gingerBill
2022-05-12 12:54:27 +01:00
parent ccb38c3dc6
commit bb4f108487
15 changed files with 310 additions and 191 deletions
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core/os/os2/stat_windows.odin
+52 -80
View File
@@ -1,22 +1,22 @@
//+private
package os2
import "core:runtime"
import "core:time"
import "core:strings"
import win32 "core:sys/windows"
_fstat :: proc(f: ^File, allocator := context.allocator) -> (File_Info, Error) {
_fstat :: proc(f: ^File, allocator: runtime.Allocator) -> (File_Info, Error) {
if f == nil || f.impl.fd == nil {
return {}, .Invalid_Argument
return {}, nil
}
context.allocator = allocator
path, err := _cleanpath_from_handle(f)
path, err := _cleanpath_from_handle(f, allocator)
if err != nil {
return {}, err
}
h := win32.HANDLE(f.impl.fd)
h := _handle(f)
switch win32.GetFileType(h) {
case win32.FILE_TYPE_PIPE, win32.FILE_TYPE_CHAR:
fi: File_Info
@@ -26,13 +26,13 @@ _fstat :: proc(f: ^File, allocator := context.allocator) -> (File_Info, Error) {
return fi, nil
}
return _file_info_from_get_file_information_by_handle(path, h)
return _file_info_from_get_file_information_by_handle(path, h, allocator)
}
_stat :: proc(name: string, allocator := context.allocator) -> (File_Info, Error) {
return internal_stat(name, win32.FILE_FLAG_BACKUP_SEMANTICS)
_stat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
return internal_stat(name, win32.FILE_FLAG_BACKUP_SEMANTICS, allocator)
}
_lstat :: proc(name: string, allocator := context.allocator) -> (File_Info, Error) {
return internal_stat(name, win32.FILE_FLAG_BACKUP_SEMANTICS|win32.FILE_FLAG_OPEN_REPARSE_POINT)
_lstat :: proc(name: string, allocator: runtime.Allocator) -> (File_Info, Error) {
return internal_stat(name, win32.FILE_FLAG_BACKUP_SEMANTICS|win32.FILE_FLAG_OPEN_REPARSE_POINT, allocator)
}
_same_file :: proc(fi1, fi2: File_Info) -> bool {
return fi1.fullpath == fi2.fullpath
@@ -40,50 +40,38 @@ _same_file :: proc(fi1, fi2: File_Info) -> bool {
_stat_errno :: proc(errno: win32.DWORD) -> Error {
return Platform_Error{i32(errno)}
}
full_path_from_name :: proc(name: string, allocator := context.allocator) -> (path: string, err: Error) {
context.allocator = allocator
full_path_from_name :: proc(name: string, allocator: runtime.Allocator) -> (path: string, err: Error) {
name := name
if name == "" {
name = "."
}
p := win32.utf8_to_utf16(name, context.temp_allocator)
buf := make([dynamic]u16, 100)
for {
n := win32.GetFullPathNameW(raw_data(p), u32(len(buf)), raw_data(buf), nil)
if n == 0 {
delete(buf)
return "", _stat_errno(win32.GetLastError())
}
if n <= u32(len(buf)) {
return win32.utf16_to_utf8(buf[:n]), nil
}
resize(&buf, len(buf)*2)
}
p := win32.utf8_to_utf16(name, _temp_allocator())
return
n := win32.GetFullPathNameW(raw_data(p), 0, nil, nil)
if n == 0 {
return "", _get_platform_error()
}
buf := make([]u16, n+1, _temp_allocator())
n = win32.GetFullPathNameW(raw_data(p), u32(len(buf)), raw_data(buf), nil)
if n == 0 {
return "", _get_platform_error()
}
return win32.utf16_to_utf8(buf[:n], allocator), nil
}
internal_stat :: proc(name: string, create_file_attributes: u32, allocator := context.allocator) -> (fi: File_Info, e: Error) {
internal_stat :: proc(name: string, create_file_attributes: u32, allocator: runtime.Allocator) -> (fi: File_Info, e: Error) {
if len(name) == 0 {
return {}, .Not_Exist
}
context.allocator = allocator
wname := _fix_long_path(name)
fa: win32.WIN32_FILE_ATTRIBUTE_DATA
ok := win32.GetFileAttributesExW(wname, win32.GetFileExInfoStandard, &fa)
if ok && fa.dwFileAttributes & win32.FILE_ATTRIBUTE_REPARSE_POINT == 0 {
// Not a symlink
return _file_info_from_win32_file_attribute_data(&fa, name)
return _file_info_from_win32_file_attribute_data(&fa, name, allocator)
}
err := 0 if ok else win32.GetLastError()
@@ -97,7 +85,7 @@ internal_stat :: proc(name: string, create_file_attributes: u32, allocator := co
}
win32.FindClose(sh)
return _file_info_from_win32_find_data(&fd, name)
return _file_info_from_win32_find_data(&fd, name, allocator)
}
h := win32.CreateFileW(wname, 0, 0, nil, win32.OPEN_EXISTING, create_file_attributes, nil)
@@ -106,7 +94,7 @@ internal_stat :: proc(name: string, create_file_attributes: u32, allocator := co
return
}
defer win32.CloseHandle(h)
return _file_info_from_get_file_information_by_handle(name, h)
return _file_info_from_get_file_information_by_handle(name, h, allocator)
}
@@ -131,56 +119,40 @@ _cleanpath_strip_prefix :: proc(buf: []u16) -> []u16 {
}
_cleanpath_from_handle :: proc(f: ^File) -> (string, Error) {
_cleanpath_from_handle :: proc(f: ^File, allocator: runtime.Allocator) -> (string, Error) {
if f == nil || f.impl.fd == nil {
return "", .Invalid_Argument
return "", nil
}
h := win32.HANDLE(f.impl.fd)
h := _handle(f)
MAX_PATH := win32.DWORD(260) + 1
buf: []u16
for {
buf = make([]u16, MAX_PATH, context.temp_allocator)
err := win32.GetFinalPathNameByHandleW(h, raw_data(buf), MAX_PATH, 0)
switch err {
case win32.ERROR_PATH_NOT_FOUND, win32.ERROR_INVALID_PARAMETER:
return "", _stat_errno(err)
case win32.ERROR_NOT_ENOUGH_MEMORY:
MAX_PATH = MAX_PATH*2 + 1
continue
}
break
n := win32.GetFinalPathNameByHandleW(h, nil, 0, 0)
if n == 0 {
return "", _get_platform_error()
}
return _cleanpath_from_buf(buf), nil
buf := make([]u16, max(n, 260)+1, _temp_allocator())
n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
return _cleanpath_from_buf(buf[:n], allocator), nil
}
_cleanpath_from_handle_u16 :: proc(f: ^File) -> ([]u16, Error) {
if f == nil || f.impl.fd == nil {
return nil, .Invalid_Argument
return nil, nil
}
h := win32.HANDLE(f.impl.fd)
h := _handle(f)
MAX_PATH := win32.DWORD(260) + 1
buf: []u16
for {
buf = make([]u16, MAX_PATH, context.temp_allocator)
err := win32.GetFinalPathNameByHandleW(h, raw_data(buf), MAX_PATH, 0)
switch err {
case win32.ERROR_PATH_NOT_FOUND, win32.ERROR_INVALID_PARAMETER:
return nil, _stat_errno(err)
case win32.ERROR_NOT_ENOUGH_MEMORY:
MAX_PATH = MAX_PATH*2 + 1
continue
}
break
n := win32.GetFinalPathNameByHandleW(h, nil, 0, 0)
if n == 0 {
return nil, _get_platform_error()
}
return _cleanpath_strip_prefix(buf), nil
buf := make([]u16, max(n, 260)+1, _temp_allocator())
n = win32.GetFinalPathNameByHandleW(h, raw_data(buf), u32(len(buf)), 0)
return _cleanpath_strip_prefix(buf[:n]), nil
}
_cleanpath_from_buf :: proc(buf: []u16) -> string {
_cleanpath_from_buf :: proc(buf: []u16, allocator: runtime.Allocator) -> string {
buf := buf
buf = _cleanpath_strip_prefix(buf)
return win32.utf16_to_utf8(buf, context.allocator)
return win32.utf16_to_utf8(buf, allocator)
}
@@ -252,7 +224,7 @@ _file_mode_from_file_attributes :: proc(FileAttributes: win32.DWORD, h: win32.HA
}
_file_info_from_win32_file_attribute_data :: proc(d: ^win32.WIN32_FILE_ATTRIBUTE_DATA, name: string) -> (fi: File_Info, e: Error) {
_file_info_from_win32_file_attribute_data :: proc(d: ^win32.WIN32_FILE_ATTRIBUTE_DATA, name: string, allocator: runtime.Allocator) -> (fi: File_Info, e: Error) {
fi.size = i64(d.nFileSizeHigh)<<32 + i64(d.nFileSizeLow)
fi.mode |= _file_mode_from_file_attributes(d.dwFileAttributes, nil, 0)
@@ -262,14 +234,14 @@ _file_info_from_win32_file_attribute_data :: proc(d: ^win32.WIN32_FILE_ATTRIBUTE
fi.modification_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastWriteTime))
fi.access_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastAccessTime))
fi.fullpath, e = full_path_from_name(name)
fi.fullpath, e = full_path_from_name(name, allocator)
fi.name = basename(fi.fullpath)
return
}
_file_info_from_win32_find_data :: proc(d: ^win32.WIN32_FIND_DATAW, name: string) -> (fi: File_Info, e: Error) {
_file_info_from_win32_find_data :: proc(d: ^win32.WIN32_FIND_DATAW, name: string, allocator: runtime.Allocator) -> (fi: File_Info, e: Error) {
fi.size = i64(d.nFileSizeHigh)<<32 + i64(d.nFileSizeLow)
fi.mode |= _file_mode_from_file_attributes(d.dwFileAttributes, nil, 0)
@@ -279,17 +251,17 @@ _file_info_from_win32_find_data :: proc(d: ^win32.WIN32_FIND_DATAW, name: string
fi.modification_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastWriteTime))
fi.access_time = time.unix(0, win32.FILETIME_as_unix_nanoseconds(d.ftLastAccessTime))
fi.fullpath, e = full_path_from_name(name)
fi.fullpath, e = full_path_from_name(name, allocator)
fi.name = basename(fi.fullpath)
return
}
_file_info_from_get_file_information_by_handle :: proc(path: string, h: win32.HANDLE) -> (File_Info, Error) {
_file_info_from_get_file_information_by_handle :: proc(path: string, h: win32.HANDLE, allocator: runtime.Allocator) -> (File_Info, Error) {
d: win32.BY_HANDLE_FILE_INFORMATION
if !win32.GetFileInformationByHandle(h, &d) {
return {}, _stat_errno(win32.GetLastError())
return {}, _get_platform_error()
}
@@ -297,7 +269,7 @@ _file_info_from_get_file_information_by_handle :: proc(path: string, h: win32.HA
if !win32.GetFileInformationByHandleEx(h, .FileAttributeTagInfo, &ti, size_of(ti)) {
err := win32.GetLastError()
if err != win32.ERROR_INVALID_PARAMETER {
return {}, _stat_errno(err)
return {}, Platform_Error(err)
}
// Indicate this is a symlink on FAT file systems
ti.ReparseTag = 0