Process Control Extensions
Introduction
Process Control Extensions
PHP Manual

# Eio

- Introduction
- Installing/Configuring
  - Requirements
  - Installation
  - Runtime Configuration
  - Resource Types
- Predefined Constants
- Examples
- Eio Functions
  - eio_busy — Artificially increase load. Could be useful in tests, benchmarking.
  - eio_cancel — Cancels a request
  - eio_chmod — Change file/direcrory permissions.
  - eio_chown — Change file/direcrory permissions.
  - eio_close — Close file
  - eio_custom — Execute custom request like any other eio_* call.
  - eio_dup2 — Duplicate a file descriptor
  - eio_event_loop — Polls libeio until all requests proceeded
  - eio_fallocate — Allows the caller to directly manipulate the allocated disk space for a file
  - eio_fchmod — Change file permissions.
  - eio_fchown — Change file ownership
  - eio_fdatasync — Synchronize a file's in-core state with storage device.
  - eio_fstat — Get file status
  - eio_fstatvfs — Get file system statistics
  - eio_fsync — Synchronize a file's in-core state with storage device
  - eio_ftruncate — Truncate a file
  - eio_futime — Change file last access and modification times
  - eio_get_event_stream — Get stream representing a variable used in internal communications with libeio.
  - eio_get_last_error — Returns string describing the last error associated with a request resource
  - eio_grp_add — Adds a request to the request group.
  - eio_grp_cancel — Cancels a request group
  - eio_grp_limit — Set group limit
  - eio_grp — Createsa request group.
  - eio_init — (Re-)initialize Eio
  - eio_link — Create a hardlink for file
  - eio_lstat — Get file status
  - eio_mkdir — Create directory
  - eio_mknod — Create a special or ordinary file.
  - eio_nop — Does nothing, except go through the whole request cycle.
  - eio_npending — Returns number of finished, but unhandled requests
  - eio_nready — Returns number of not-yet handled requests
  - eio_nreqs — Returns number of requests to be processed
  - eio_nthreads — Returns number of threads currently in use
  - eio_open — Opens a file
  - eio_poll — Can be to be called whenever there are pending requests that need finishing.
  - eio_read — Read from a file descriptor at given offset.
  - eio_readahead — Perform file readahead into page cache
  - eio_readdir — Reads through a whole directory
  - eio_readlink — Read value of a symbolic link.
  - eio_realpath — Get the canonicalized absolute pathname.
  - eio_rename — Change the name or location of a file.
  - eio_rmdir — Remove a directory
  - eio_seek — Repositions the offset of the open file associated with the fd argument to the argument offset according to the directive whence
  - eio_sendfile — Transfer data between file descriptors
  - eio_set_max_idle — Set maximum number of idle threads.
  - eio_set_max_parallel — Set maximum parallel threads
  - eio_set_max_poll_reqs — Set maximum number of requests processed in a poll.
  - eio_set_max_poll_time — Set maximum poll time
  - eio_set_min_parallel — Set minimum parallel thread number
  - eio_stat — Get file status
  - eio_statvfs — Get file system statistics
  - eio_symlink — Create a symbolic link
  - eio_sync_file_range — Sync a file segment with disk
  - eio_sync — Commit buffer cache to disk
  - eio_syncfs — Calls Linux' syncfs syscall, if available
  - eio_truncate — Truncate a file
  - eio_unlink — Delete a name and possibly the file it refers to
  - eio_utime — Change file last access and modification times.
  - eio_write — Write to file

Process Control Extensions
Introduction
Process Control Extensions
PHP Manual