putMove
Same as put but the key and value become owned by the EnvMap rather
than being copied.
If putMove fails, the ownership of key and value does not transfer.
On Windows key must be a valid WTF-8 string.
Function parameters
Parameters
- self:*EnvMap
- key:[]u8
- value:[]u8
Type definitions in this namespace
Types
- ArgIteratorWindows
- Iterator that implements the Windows command-line parsing algorithm.
- ArgIteratorGeneralOptions
- Optional parameters for `ArgIteratorGeneral`
- ArgIterator
- Cross-platform command line argument iterator.
Functions in this namespace
Functions
- getCwd
- The result is a slice of `out_buffer`, from index `0`.
- getCwdAlloc
- Caller must free the returned memory.
- getEnvMap
- Returns a snapshot of the environment variables of the current process.
- getEnvVarOwned
- Caller must free returned memory.
- hasEnvVarConstant
- On Windows, `key` must be valid WTF-8.
- hasNonEmptyEnvVarConstant
- On Windows, `key` must be valid WTF-8.
- parseEnvVarInt
- Parses an environment variable as an integer.
- hasEnvVar
- On Windows, if `key` is not valid [WTF-8](https://simonsapin.github.io/wtf-8/),
- hasNonEmptyEnvVar
- On Windows, if `key` is not valid [WTF-8](https://simonsapin.github.io/wtf-8/),
- getenvW
- Windows-only.
- ArgIteratorGeneral
- A general Iterator to parse a string into a set of arguments
- args
- Holds the command-line arguments, with the program name as the first entry.
- argsWithAllocator
- You must deinitialize iterator's internal buffers by calling `deinit` when done.
- argsAlloc
- Caller must call argsFree on result.
- getUserInfo
- POSIX function which gets a uid from username.
- posixGetUserInfo
- TODO this reads /etc/passwd.
- execv
- Replaces the current process image with the executed process.
- execve
- Replaces the current process image with the executed process.
- totalSystemMemory
- Returns the total system memory, in bytes as a u64.
- cleanExit
- Indicate that we are now terminating with a successful exit code.
- raiseFileDescriptorLimit
- Raise the open file descriptor limit.
- createEnvironFromMap
- Creates a null-delimited environment variable block in the format
- createEnvironFromExisting
- Creates a null-delimited environment variable block in the format
- createWindowsEnvBlock
- Caller must free result.
- fatal
- Logs an error and then terminates the process with exit code 1.
Error sets in this namespace
Error Sets
Tells whether calling the `execv` or `execve` functions will be a compile error.
Values
Source
Implementation
pub fn putMove(self: *EnvMap, key: []u8, value: []u8) !void {
assert(unicode.wtf8ValidateSlice(key));
const get_or_put = try self.hash_map.getOrPut(key);
if (get_or_put.found_existing) {
self.free(get_or_put.key_ptr.*);
self.free(get_or_put.value_ptr.*);
get_or_put.key_ptr.* = key;
}
get_or_put.value_ptr.* = value;
}