mirror of https://github.com/curl/curl.git synced 2025-01-06 13:44:52 +08:00

Daniel Stenberg eefcc1bda4

docs: introduce "curldown" for libcurl man page format

curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
  their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730

2024-01-23 00:29:02 +01:00

1.6 KiB

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SPDX-License-Identifier

Title

Section

Source

See-also

curl

CURLSHOPT_UNLOCKFUNC

libcurl

CURLSHOPT_LOCKFUNC (3)

curl_share_cleanup (3)

curl_share_init (3)

curl_share_setopt (3)

NAME

CURLSHOPT_UNLOCKFUNC - mutex unlock callback

SYNOPSIS

#include <curl/curl.h>

void unlockcb(CURL *handle, curl_lock_data data, void *clientp);

CURLSHcode curl_share_setopt(CURLSH *share, CURLSHOPT_UNLOCKFUNC, unlockcb);

DESCRIPTION

Set a mutex unlock callback for the share object. There is a corresponding CURLSHOPT_LOCKFUNC(3) callback called when the mutex is first locked.

The unlockcb argument must be a pointer to a function matching the prototype shown above. The arguments to the callback are:

handle is the currently active easy handle in use when the share object is released.

The data argument tells what kind of data libcurl wants to unlock. Make sure that the callback uses a different lock for each kind of data.

clientp is the private pointer you set with CURLSHOPT_USERDATA(3). This pointer is not used by libcurl itself.

PROTOCOLS

All

EXAMPLE

extern void mutex_unlock(CURL *, curl_lock_data, void *);

int main(void)
{
  CURLSHcode sh;
  CURLSH *share = curl_share_init();
  sh = curl_share_setopt(share, CURLSHOPT_UNLOCKFUNC, mutex_unlock);
  if(sh)
    printf("Error: %s\n", curl_share_strerror(sh));
}

AVAILABILITY

Added in 7.10

RETURN VALUE

CURLSHE_OK (zero) means that the option was set properly, non-zero means an error occurred. See libcurl-errors(3) for the full list with descriptions.

1.6 KiB Raw Blame History