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Reorder functions to more closely reflect the flow of control

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This commit is contained in:
Michael Brown
2007-01-18 13:10:26 +00:00
parent 35776f481c
commit 08da93a311
2 changed files with 99 additions and 105 deletions
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97
src/core/download.c
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@@ -30,6 +30,8 @@
#include <gpxe/ebuffer.h>
#include <gpxe/download.h>
static struct async_operations download_async_operations;
/** Registered download protocols */
static struct download_protocol download_protocols[0]
__table_start ( struct download_protocol, download_protocols );
@@ -53,53 +55,6 @@ static struct download_protocol * find_protocol ( const char *name ) {
return NULL;
}
/** Free download resources */
static void download_reap ( struct async *async ) {
struct download *download =
container_of ( async, struct download, async );
free ( download );
}
/**
* Handle download termination
*
* @v async Download asynchronous operation
* @v signal SIGCHLD
*/
static void download_sigchld ( struct async *async,
enum signal signal __unused ) {
struct download *download =
container_of ( async, struct download, async );
int rc;
/* Reap child */
async_wait ( async, &rc, 1 );
/* Clean up */
if ( rc == 0 ) {
/* Transfer ownership of buffer to parent */
*(download->data) = download->buffer.addr;
*(download->len) = download->buffer.fill;
} else {
/* Discard the buffer */
ufree ( download->buffer.addr );
}
free_uri ( download->uri );
download->uri = NULL;
/* Terminate ourselves */
async_done ( async, rc );
}
/** Download asynchronous operations */
static struct async_operations download_async_operations = {
.reap = download_reap,
.signal = {
[SIGCHLD] = download_sigchld,
},
};
/**
* Start download
*
@@ -170,3 +125,51 @@ int start_download ( const char *uri_string, struct async *parent,
free ( download );
return rc;
}
/**
* Handle download termination
*
* @v async Download asynchronous operation
* @v signal SIGCHLD
*/
static void download_sigchld ( struct async *async,
enum signal signal __unused ) {
struct download *download =
container_of ( async, struct download, async );
int rc;
/* Reap child */
async_wait ( async, &rc, 1 );
/* Clean up */
if ( rc == 0 ) {
/* Transfer ownership of buffer to parent */
*(download->data) = download->buffer.addr;
*(download->len) = download->buffer.fill;
} else {
/* Discard the buffer */
ufree ( download->buffer.addr );
}
free_uri ( download->uri );
download->uri = NULL;
/* Terminate ourselves */
async_done ( async, rc );
}
/**
* Free download resources
*
* @v async Download asynchronous operation
*/
static void download_reap ( struct async *async ) {
free ( container_of ( async, struct download, async ) );
}
/** Download asynchronous operations */
static struct async_operations download_async_operations = {
.reap = download_reap,
.signal = {
[SIGCHLD] = download_sigchld,
},
};