std.posix: Added 'error.ProcessNotFound' where necessary

lib/std/fs.zig

@@ -512,6 +512,7 @@ pub const SelfExePathError = error{
 
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
+    ProcessNotFound,
 
     /// On Windows, antivirus software is enabled by default. It can be
     /// disabled, but Windows Update sometimes ignores the user's preference

lib/std/fs/Dir.zig

@@ -784,6 +784,7 @@ pub const OpenError = error{
     DeviceBusy,
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
+    ProcessNotFound,
 } || posix.UnexpectedError;
 
 pub fn close(self: *Dir) void {
@@ -1696,6 +1697,7 @@ pub const DeleteDirError = error{
     BadPathName,
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
+    ProcessNotFound,
     Unexpected,
 };
 
@@ -2005,6 +2007,7 @@ pub const DeleteTreeError = error{
     FileSystem,
     FileBusy,
     DeviceBusy,
+    ProcessNotFound,
 
     /// One of the path components was not a directory.
     /// This error is unreachable if `sub_path` does not contain a path separator.
@@ -2079,6 +2082,7 @@ pub fn deleteTree(self: Dir, sub_path: []const u8) DeleteTreeError!void {
                             error.PermissionDenied,
                             error.SymLinkLoop,
                             error.ProcessFdQuotaExceeded,
+                            error.ProcessNotFound,
                             error.NameTooLong,
                             error.SystemFdQuotaExceeded,
                             error.NoDevice,
@@ -2175,6 +2179,7 @@ pub fn deleteTree(self: Dir, sub_path: []const u8) DeleteTreeError!void {
                             error.AccessDenied,
                             error.PermissionDenied,
                             error.SymLinkLoop,
+                            error.ProcessNotFound,
                             error.ProcessFdQuotaExceeded,
                             error.NameTooLong,
                             error.SystemFdQuotaExceeded,
@@ -2282,6 +2287,7 @@ fn deleteTreeMinStackSizeWithKindHint(self: Dir, sub_path: []const u8, kind_hint
                             error.AccessDenied,
                             error.PermissionDenied,
                             error.SymLinkLoop,
+                            error.ProcessNotFound,
                             error.ProcessFdQuotaExceeded,
                             error.NameTooLong,
                             error.SystemFdQuotaExceeded,
@@ -2383,6 +2389,7 @@ fn deleteTreeOpenInitialSubpath(self: Dir, sub_path: []const u8, kind_hint: File
                     error.PermissionDenied,
                     error.SymLinkLoop,
                     error.ProcessFdQuotaExceeded,
+                    error.ProcessNotFound,
                     error.NameTooLong,
                     error.SystemFdQuotaExceeded,
                     error.NoDevice,

lib/std/fs/File.zig

@@ -52,6 +52,7 @@ pub const OpenError = error{
     Unexpected,
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
+    ProcessNotFound,
     /// On Windows, antivirus software is enabled by default. It can be
     /// disabled, but Windows Update sometimes ignores the user's preference
     /// and re-enables it. When enabled, antivirus software on Windows

lib/std/posix.zig

@@ -870,7 +870,7 @@ pub fn read(fd: fd_t, buf: []u8) ReadError!usize {
             .INTR => continue,
             .INVAL => unreachable,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .CANCELED => return error.Canceled,
             .BADF => return error.NotOpenForReading, // Can be a race condition.
@@ -934,7 +934,7 @@ pub fn readv(fd: fd_t, iov: []const iovec) ReadError!usize {
             .INTR => continue,
             .INVAL => unreachable,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForReading, // can be a race condition
             .IO => return error.InputOutput,
@@ -1014,7 +1014,7 @@ pub fn pread(fd: fd_t, buf: []u8, offset: u64) PReadError!usize {
             .INTR => continue,
             .INVAL => unreachable,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForReading, // Can be a race condition.
             .IO => return error.InputOutput,
@@ -1156,7 +1156,7 @@ pub fn preadv(fd: fd_t, iov: []const iovec, offset: u64) PReadError!usize {
             .INTR => continue,
             .INVAL => unreachable,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForReading, // can be a race condition
             .IO => return error.InputOutput,
@@ -1278,7 +1278,7 @@ pub fn write(fd: fd_t, bytes: []const u8) WriteError!usize {
             .INTR => continue,
             .INVAL => return error.InvalidArgument,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForWriting, // can be a race condition.
             .DESTADDRREQ => unreachable, // `connect` was never called.
@@ -1354,7 +1354,7 @@ pub fn writev(fd: fd_t, iov: []const iovec_const) WriteError!usize {
             .INTR => continue,
             .INVAL => return error.InvalidArgument,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForWriting, // Can be a race condition.
             .DESTADDRREQ => unreachable, // `connect` was never called.
@@ -1444,7 +1444,7 @@ pub fn pwrite(fd: fd_t, bytes: []const u8, offset: u64) PWriteError!usize {
             .INTR => continue,
             .INVAL => return error.InvalidArgument,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForWriting, // Can be a race condition.
             .DESTADDRREQ => unreachable, // `connect` was never called.
@@ -1529,7 +1529,7 @@ pub fn pwritev(fd: fd_t, iov: []const iovec_const, offset: u64) PWriteError!usiz
             .INTR => continue,
             .INVAL => return error.InvalidArgument,
             .FAULT => unreachable,
-            .NOENT => return error.ProcessNotFound,
+            .SRCH => return error.ProcessNotFound,
             .AGAIN => return error.WouldBlock,
             .BADF => return error.NotOpenForWriting, // Can be a race condition.
             .DESTADDRREQ => unreachable, // `connect` was never called.
@@ -1608,6 +1608,9 @@ pub const OpenError = error{
     /// On Windows, `\\server` or `\\server\share` was not found.
     NetworkNotFound,
 
+    /// This error occurs in Linux if the process to be open was not found.
+    ProcessNotFound,
+
     /// One of these three things:
     /// * pathname  refers to an executable image which is currently being
     ///   executed and write access was requested.
@@ -1667,6 +1670,7 @@ pub fn openZ(file_path: [*:0]const u8, flags: O, perm: mode_t) OpenError!fd_t {
             .NFILE => return error.SystemFdQuotaExceeded,
             .NODEV => return error.NoDevice,
             .NOENT => return error.FileNotFound,
+            .SRCH => return error.ProcessNotFound,
             .NOMEM => return error.SystemResources,
             .NOSPC => return error.NoSpaceLeft,
             .NOTDIR => return error.NotDir,
@@ -1838,6 +1842,7 @@ pub fn openatZ(dir_fd: fd_t, file_path: [*:0]const u8, flags: O, mode: mode_t) O
             .NFILE => return error.SystemFdQuotaExceeded,
             .NODEV => return error.NoDevice,
             .NOENT => return error.FileNotFound,
+            .SRCH => return error.ProcessNotFound,
             .NOMEM => return error.SystemResources,
             .NOSPC => return error.NoSpaceLeft,
             .NOTDIR => return error.NotDir,
@@ -5478,6 +5483,7 @@ pub const RealPathError = error{
     FileSystem,
     BadPathName,
     DeviceBusy,
+    ProcessNotFound,
 
     SharingViolation,
     PipeBusy,

lib/std/zig/system.zig

@@ -838,6 +838,7 @@ fn glibcVerFromRPath(rpath: []const u8) !std.SemanticVersion {
         error.NoDevice,
         => return error.GLibCNotFound,
 
+        error.ProcessNotFound,
         error.ProcessFdQuotaExceeded,
         error.SystemFdQuotaExceeded,
         error.SystemResources,
@@ -881,6 +882,7 @@ fn glibcVerFromRPath(rpath: []const u8) !std.SemanticVersion {
 
         error.FileTooBig => return error.Unexpected,
 
+        error.ProcessNotFound,
         error.ProcessFdQuotaExceeded,
         error.SystemFdQuotaExceeded,
         error.SystemResources,