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review/correct/cleanup posix linux PR
This commit is contained in:
Laytan
+68
-137
@@ -92,120 +92,52 @@ Lock_Type :: enum c.short {
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WRLCK = F_WRLCK,
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}
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// Assertions made to unify this bit set.
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#assert(O_RDONLY == 0)
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O_Flag_Bits :: enum c.int {
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// Sets FD_CLOEXEC on the file descriptor.
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CLOEXEC = log2(O_CLOEXEC),
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// If not exists, combined with DIRECTORY will cause creation of a directory, otherwise a regular file.
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CREAT = log2(O_CREAT),
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// Fails if the opened descriptor would not be a directory.
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DIRECTORY = log2(O_DIRECTORY),
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// If combined with CREAT, causes a failure if the file already exists.
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EXCL = log2(O_EXCL),
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// If terminal device, do not make it the controlling terminal for the process.
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NOCTTY = log2(O_NOCTTY),
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// Don't follow symbolic links, fail with errno ELOOP.
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NOFOLLOW = log2(O_NOFOLLOW),
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// If exists and regular, truncate the length to 0.
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TRUNC = log2(O_TRUNC),
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when ODIN_OS == .Linux {
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// NOTE: use with `posix.O_TTY_INIT + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// TTY_INIT = O_TTY_INIT,
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O_Flag_Bits :: enum c.int {
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// Sets FD_CLOEXEC on the file descriptor.
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CLOEXEC = log2(O_CLOEXEC),
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// If not exists, combined with DIRECTORY will cause creation of a directory, otherwise a regular file.
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CREAT = log2(O_CREAT),
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// Fails if the opened descriptor would not be a directory.
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DIRECTORY = log2(O_DIRECTORY),
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// If combined with CREAT, causes a failure if the file already exists.
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EXCL = log2(O_EXCL),
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// If terminal device, do not make it the controlling terminal for the process.
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NOCTTY = log2(O_NOCTTY),
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// Don't follow symbolic links, fail with errno ELOOP.
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NOFOLLOW = log2(O_NOFOLLOW),
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// If exists and regular, truncate the length to 0.
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TRUNC = log2(O_TRUNC),
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// Set file offset to end of file prior to each write.
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APPEND = log2(O_APPEND),
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// Write I/O shall complete as defined by synchronized I/O data integrity completion.
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DSYNC = log2(O_DSYNC),
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// Causes nonblocking behaviour in various situations.
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NONBLOCK = log2(O_NONBLOCK),
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// Write I/O shall complete as defined by synchronized I/O file integrity completion.
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SYNC = log2(O_SYNC),
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// NOTE: use with `posix.O_TTY_INIT + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// TTY_INIT = O_TTY_INIT,
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// NOTE: use with `posix.O_RSYNC + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// RSYNC = O_RSYNC,
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// Set file offset to end of file prior to each write.
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APPEND = log2(O_APPEND),
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// Write I/O shall complete as defined by synchronized I/O data integrity completion.
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DSYNC = log2(O_DSYNC),
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// Causes nonblocking behaviour in various situations.
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NONBLOCK = log2(O_NONBLOCK),
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// Write I/O shall complete as defined by synchronized I/O file integrity completion.
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SYNC = log2(O_SYNC),
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// NOTE: use with `posix.O_RSYNC + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// RSYNC = O_RSYNC,
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// Execute only.
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// NOTE: use with `posix.O_ENTER + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// EXEC = O_EXEC
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// Reading and writing.
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RDWR = log2(O_RDWR),
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// Writing only.
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WRONLY = log2(O_WRONLY),
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// Reading only.
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// RDONLY = 0, // Default
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}
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O_Flags :: bit_set[O_Flag_Bits; c.int]
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} else {
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O_Flag_Bits :: enum c.int {
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// Sets FD_CLOEXEC on the file descriptor.
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CLOEXEC = log2(O_CLOEXEC),
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// If not exists, combined with DIRECTORY will cause creation of a directory, otherwise a regular file.
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CREAT = log2(O_CREAT),
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// Fails if the opened descriptor would not be a directory.
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DIRECTORY = log2(O_DIRECTORY),
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// If combined with CREAT, causes a failure if the file already exists.
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EXCL = log2(O_EXCL),
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// If terminal device, do not make it the controlling terminal for the process.
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NOCTTY = log2(O_NOCTTY),
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// Don't follow symbolic links, fail with errno ELOOP.
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NOFOLLOW = log2(O_NOFOLLOW),
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// If exists and regular, truncate the length to 0.
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TRUNC = log2(O_TRUNC),
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// NOTE: use with `posix.O_TTY_INIT + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// TTY_INIT = O_TTY_INIT,
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// Set file offset to end of file prior to each write.
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APPEND = log2(O_APPEND),
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// Write I/O shall complete as defined by synchronized I/O data integrity completion.
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DSYNC = log2(O_DSYNC),
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// Causes nonblocking behaviour in various situations.
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NONBLOCK = log2(O_NONBLOCK),
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// Write I/O shall complete as defined by synchronized I/O file integrity completion.
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SYNC = log2(O_SYNC),
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// NOTE: use with `posix.O_RSYNC + { .OTHER_FLAG, .OTHER_FLAG }`, unfortunately can't be in
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// this bit set enum because it is 0 on some platforms and a value on others.
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// RSYNC = O_RSYNC,
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// Execute only.
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EXEC = log2(O_EXEC),
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// Reading and writing.
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RDWR = log2(O_RDWR),
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// Writing only.
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WRONLY = log2(O_WRONLY),
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// Reading only.
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// RDONLY = 0, // Default
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}
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O_Flags :: bit_set[O_Flag_Bits; c.int]
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// Execute only.
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EXEC = log2(O_EXEC),
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// Reading and writing.
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RDWR = log2(O_RDWR),
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// Writing only.
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WRONLY = log2(O_WRONLY),
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// Reading only.
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// RDONLY = 0, // Default
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}
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// A mask of all the access mode bits.
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when ODIN_OS == .Linux {
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O_Flags :: bit_set[O_Flag_Bits; c.int]
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// NOTE: .EXEC and .RDONLY also belong here, but they are 0 on some platforms.
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O_ACCMODE :: O_Flags{ .RDWR, .WRONLY }
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} else {
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// NOTE: .RDONLY also belong here, but they are 0 on some platforms.
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O_ACCMODE :: O_Flags{ .EXEC, .RDWR, .WRONLY }
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}
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O_ACCMODE :: O_Flags{ .EXEC, .RDWR, .WRONLY }
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AT_Flag_Bits :: enum c.int {
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EACCESS = log2(AT_EACCESS),
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@@ -265,7 +197,7 @@ when ODIN_OS == .Darwin {
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_O_SEARCH :: O_EXEC | O_DIRECTORY
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O_SEARCH :: O_Flags{.EXEC, .DIRECTORY}
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AT_FDCWD: FD : -2
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AT_FDCWD: FD: -2
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AT_EACCESS :: 0x0010
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AT_SYMLINK_NOFOLLOW :: 0x0020
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@@ -329,7 +261,7 @@ when ODIN_OS == .Darwin {
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_O_SEARCH :: O_EXEC
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O_SEARCH :: O_Flags{ .EXEC }
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AT_FDCWD: FD : -100
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AT_FDCWD: FD: -100
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AT_EACCESS :: 0x0100
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AT_SYMLINK_NOFOLLOW :: 0x0200
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@@ -396,7 +328,7 @@ when ODIN_OS == .Darwin {
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_O_SEARCH :: 0x00800000
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O_SEARCH :: O_Flags{O_Flag_Bits(log2(_O_SEARCH))}
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AT_FDCWD: FD : -100
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AT_FDCWD: FD: -100
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AT_EACCESS :: 0x100
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AT_SYMLINK_NOFOLLOW :: 0x200
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@@ -460,7 +392,7 @@ when ODIN_OS == .Darwin {
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_O_SEARCH :: 0
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O_SEARCH :: O_Flags{} // NOTE: not defined in the headers
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AT_FDCWD: FD : -100
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AT_FDCWD: FD: -100
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AT_EACCESS :: 0x01
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AT_SYMLINK_NOFOLLOW :: 0x02
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@@ -480,21 +412,21 @@ when ODIN_OS == .Darwin {
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off_t :: distinct c.int64_t
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pid_t :: distinct c.int
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F_DUPFD :: 0 // Duplicate file descriptor.
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F_GETFD :: 1 /* Get file descriptor flags. */
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F_SETFD :: 2 /* Set file descriptor flags. */
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F_GETFL :: 3 /* Get file status flags. */
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F_SETFL :: 4 /* Set file status flags. */
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F_GETLK :: 5 /* Get record locking info. */
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F_SETLK :: 6 /* Set record locking info (non-blocking). */
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F_SETLKW :: 7 /* Set record locking info (blocking). */
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F_SETOWN :: 8 /* Get owner (process receiving SIGIO). */
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F_GETOWN :: 9 /* Set owner (process receiving SIGIO). */
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F_RDLCK :: 0 /* Read lock. */
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F_UNLCK :: 2 /* Remove lock. */
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F_WRLCK :: 1 /* Write lock. */
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F_DUPFD :: 0
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F_GETFD :: 1
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F_SETFD :: 2
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F_GETFL :: 3
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F_SETFL :: 4
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F_GETLK :: 5
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F_SETLK :: 6
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F_SETLKW :: 7
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F_SETOWN :: 8
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F_GETOWN :: 9
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F_RDLCK :: 0
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F_UNLCK :: 2
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F_WRLCK :: 1
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F_DUPFD_CLOEXEC :: 1030 /* Duplicate file descriptor with close-on-exit set. */
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F_DUPFD_CLOEXEC :: 1030
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FD_CLOEXEC :: 1
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@@ -517,8 +449,7 @@ when ODIN_OS == .Darwin {
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_O_RSYNC :: 0
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O_RSYNC :: O_Flags{}
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// NOTE: Not implemented in Linux
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O_EXEC :: 0
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O_EXEC :: 0x04000000 // NOTE: not defined in the headers
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O_RDONLY :: 0
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O_WRONLY :: 0o1
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@@ -527,19 +458,19 @@ when ODIN_OS == .Darwin {
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_O_SEARCH :: 0
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O_SEARCH :: O_Flags{}
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AT_FDCWD: FD : -100 // Special value used to indicate the *at functions should use the current working directory.
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AT_FDCWD: FD: -100
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AT_EACCESS :: 0x200 // Test access permitted for effective IDs, not real IDs.
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AT_SYMLINK_NOFOLLOW :: 0x100 // Do not follow symbolic links.
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AT_SYMLINK_FOLLOW :: 0x400 // Follow symbolic links.
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AT_REMOVEDIR :: 0x200 // Remove directory instead of unlinking file.
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AT_EACCESS :: 0x200
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AT_SYMLINK_NOFOLLOW :: 0x100
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AT_SYMLINK_FOLLOW :: 0x400
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AT_REMOVEDIR :: 0x200
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flock :: struct {
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l_start: off_t, // [PSX] relative offset in bytes.
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l_len: off_t, // [PSX] size; if 0 then until EOF.
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l_pid: pid_t, // [PSX] process ID of the process holding the lock.
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l_type: Lock_Type, // [PSX] type of lock.
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l_whence: c.short, // [PSX] flag (Whence) of starting offset.
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l_start: off_t, /* [PSX] relative offset in bytes. */
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l_len: off_t, /* [PSX] size; if 0 then until EOF. */
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l_pid: pid_t, /* [PSX] process ID of the process holding the lock. */
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l_type: Lock_Type, /* [PSX] type of lock. */
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l_whence: c.short, /* [PSX] flag (Whence) of starting offset. */
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}
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} else {
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