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tape: add media pool config code docs

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This commit is contained in:
Dietmar Maurer 2021-01-22 12:01:46 +01:00
parent d4ab407045
commit 0d916ac531
1 changed files with 16 additions and 1 deletions
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17
src/config/media_pool.rs
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@ -1,3 +1,11 @@
//! Media Pool configuration (Tape backup)
//!
//! This configuration module is based on [`SectionConfig`], and
//! provides a type safe interface to store [`MediaPoolConfig`],
//!
//! [MediaPoolConfig]: crate::api2::types::MediaPoolConfig
//! [SectionConfig]: proxmox::api::section_config::SectionConfig
use std::collections::HashMap;
use anyhow::Error;
@ -27,7 +35,8 @@ use crate::{
};
lazy_static! {
static ref CONFIG: SectionConfig = init();
/// Static [`SectionConfig`] to access parser/writer functions.
pub static ref CONFIG: SectionConfig = init();
}
fn init() -> SectionConfig {
@ -43,13 +52,18 @@ fn init() -> SectionConfig {
config
}
/// Configuration file name
pub const MEDIA_POOL_CFG_FILENAME: &str = "/etc/proxmox-backup/media-pool.cfg";
/// Lock file name (used to prevent concurrent access)
pub const MEDIA_POOL_CFG_LOCKFILE: &str = "/etc/proxmox-backup/.media-pool.lck";
/// Get exclusive lock
pub fn lock() -> Result<std::fs::File, Error> {
open_file_locked(MEDIA_POOL_CFG_LOCKFILE, std::time::Duration::new(10, 0), true)
}
/// Read and parse the configuration file
pub fn config() -> Result<(SectionConfigData, [u8;32]), Error> {
let content = proxmox::tools::fs::file_read_optional_string(MEDIA_POOL_CFG_FILENAME)?
@ -60,6 +74,7 @@ pub fn config() -> Result<(SectionConfigData, [u8;32]), Error> {
Ok((data, digest))
}
/// Save the configuration file
pub fn save_config(config: &SectionConfigData) -> Result<(), Error> {
let raw = CONFIG.write(MEDIA_POOL_CFG_FILENAME, &config)?;