mirror of
https://github.com/xcat2/xNBA.git
synced 2025-04-18 19:18:56 +00:00
Warnings purge of src/core
This commit is contained in:
Marty Connor
parent
8febe42f78
commit
bf871c4d03
474
src/core/async.c
474
src/core/async.c
@ -1,474 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of the
|
||||
* License, or any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <assert.h>
|
||||
#include <gpxe/process.h>
|
||||
#include <gpxe/async.h>
|
||||
|
||||
/** @file
|
||||
*
|
||||
* Asynchronous operations
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* Name signal
|
||||
*
|
||||
* @v signal Signal number
|
||||
* @ret name Name of signal
|
||||
*/
|
||||
static inline __attribute__ (( always_inline )) const char *
|
||||
signal_name ( enum signal signal ) {
|
||||
switch ( signal ) {
|
||||
case SIGCHLD: return "SIGCHLD";
|
||||
case SIGKILL: return "SIGKILL";
|
||||
case SIGUPDATE: return "SIGUPDATE";
|
||||
default: return "SIG<UNKNOWN>";
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialise an asynchronous operation
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v aop Asynchronous operation operations to use
|
||||
* @v parent Parent asynchronous operation, or NULL
|
||||
* @ret aid Asynchronous operation ID
|
||||
*
|
||||
* It is valid to create an asynchronous operation with no parent
|
||||
* operation; see async_init_orphan().
|
||||
*/
|
||||
aid_t async_init ( struct async *async, struct async_operations *aop,
|
||||
struct async *parent ) {
|
||||
static aid_t aid = 1;
|
||||
|
||||
/* Assign identifier. Negative IDs are used to indicate
|
||||
* errors, so avoid assigning them.
|
||||
*/
|
||||
++aid;
|
||||
aid &= ( ( ~( ( aid_t ) 0 ) ) >> 1 );
|
||||
|
||||
DBGC ( async, "ASYNC %p (type %p) initialising as", async, aop );
|
||||
if ( parent ) {
|
||||
DBGC ( async, " child of ASYNC %p", parent );
|
||||
} else {
|
||||
DBGC ( async, " orphan" );
|
||||
}
|
||||
DBGC ( async, " with ID %ld\n", aid );
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( aop != NULL );
|
||||
|
||||
/* Add to hierarchy */
|
||||
if ( parent ) {
|
||||
async->parent = parent;
|
||||
list_add ( &async->siblings, &parent->children );
|
||||
}
|
||||
INIT_LIST_HEAD ( &async->children );
|
||||
|
||||
/* Initialise fields */
|
||||
async->rc = -EINPROGRESS;
|
||||
async->completed = 0;
|
||||
async->total = 0;
|
||||
async->aop = aop;
|
||||
async->aid = aid;
|
||||
|
||||
return async->aid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Uninitialise an asynchronous operation
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
*
|
||||
* Abandon an asynchronous operation without signalling the parent.
|
||||
* You may do this only during the period between calling async_init()
|
||||
* and returning to the parent for the first time. It is designed to
|
||||
* simplify the error paths of asynchronous operations that themselves
|
||||
* spawn further asynchronous operations.
|
||||
*
|
||||
* An example may help:
|
||||
*
|
||||
* int start_something ( ..., struct async *parent ) {
|
||||
* struct my_data_structure *myself;
|
||||
*
|
||||
* ... allocate memory for myself ...
|
||||
*
|
||||
* async_init ( &myself->async, &my_async_operations, parent );
|
||||
* if ( ( rc = start_child_operation ( ..., &myself->async ) ) != 0 ) {
|
||||
* async_uninit ( &myself->async );
|
||||
* return rc;
|
||||
* }
|
||||
*
|
||||
* return 0;
|
||||
* }
|
||||
*
|
||||
* It is valid to call async_uninit() on an asynchronous operation
|
||||
* that has not yet been initialised (i.e. a zeroed-out @c struct @c
|
||||
* async).
|
||||
*/
|
||||
void async_uninit ( struct async *async ) {
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
if ( async->parent ) {
|
||||
assert ( list_empty ( &async->children ) );
|
||||
|
||||
DBGC ( async, "ASYNC %p uninitialising\n", async );
|
||||
list_del ( &async->siblings );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* SIGCHLD 'ignore' handler
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal received
|
||||
*/
|
||||
static void async_ignore_sigchld ( struct async *async, enum signal signal ) {
|
||||
aid_t waited_aid;
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( signal == SIGCHLD );
|
||||
|
||||
/* Reap the child */
|
||||
waited_aid = async_wait ( async, NULL, 0 );
|
||||
assert ( waited_aid >= 0 );
|
||||
}
|
||||
|
||||
/**
|
||||
* SIGUPDATE 'ignore' handler
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal received
|
||||
*/
|
||||
static void async_ignore_sigupdate ( struct async *async,
|
||||
enum signal signal ) {
|
||||
struct async *child;
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( signal == SIGUPDATE );
|
||||
|
||||
async_signal_children ( async, signal );
|
||||
async->completed = 0;
|
||||
async->total = 0;
|
||||
list_for_each_entry ( child, &async->children, siblings ) {
|
||||
async->completed += child->completed;
|
||||
async->total += child->total;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 'Ignore' signal handler
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal received
|
||||
*/
|
||||
void async_ignore_signal ( struct async *async, enum signal signal ) {
|
||||
|
||||
DBGC ( async, "ASYNC %p using ignore handler for %s\n",
|
||||
async, signal_name ( signal ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
switch ( signal ) {
|
||||
case SIGCHLD:
|
||||
async_ignore_sigchld ( async, signal );
|
||||
break;
|
||||
case SIGUPDATE:
|
||||
async_ignore_sigupdate ( async, signal );
|
||||
break;
|
||||
case SIGKILL:
|
||||
default:
|
||||
/* Nothing to do */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Default signal handler
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal received
|
||||
*/
|
||||
static void async_default_signal ( struct async *async, enum signal signal ) {
|
||||
|
||||
DBGC ( async, "ASYNC %p using default handler for %s\n",
|
||||
async, signal_name ( signal ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
switch ( signal ) {
|
||||
case SIGCHLD:
|
||||
case SIGKILL:
|
||||
case SIGUPDATE:
|
||||
default:
|
||||
/* Nothing to do */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Send signal to asynchronous operation
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal to send
|
||||
*/
|
||||
void async_signal ( struct async *async, enum signal signal ) {
|
||||
signal_handler_t handler;
|
||||
|
||||
DBGC ( async, "ASYNC %p receiving %s\n",
|
||||
async, signal_name ( signal ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( async->aop != NULL );
|
||||
assert ( signal < SIGMAX );
|
||||
|
||||
handler = async->aop->signal[signal];
|
||||
if ( handler ) {
|
||||
/* Use the asynchronous operation's signal handler */
|
||||
handler ( async, signal );
|
||||
} else {
|
||||
/* Use the default handler */
|
||||
async_default_signal ( async, signal );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Send signal to all child asynchronous operations
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v signal Signal to send
|
||||
*/
|
||||
void async_signal_children ( struct async *async, enum signal signal ) {
|
||||
struct async *child;
|
||||
struct async *tmp;
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
list_for_each_entry_safe ( child, tmp, &async->children, siblings ) {
|
||||
async_signal ( child, signal );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Reap default handler
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
*/
|
||||
static void async_reap_default ( struct async *async ) {
|
||||
|
||||
DBGC ( async, "ASYNC %p ignoring REAP\n", async );
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
/* Nothing to do */
|
||||
}
|
||||
|
||||
/**
|
||||
* Reap asynchronous operation
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
*
|
||||
* Note that the asynchronous operation should have been freed by
|
||||
* calling this function; you may not dereference @c async after this
|
||||
* call.
|
||||
*/
|
||||
static void async_reap ( struct async *async ) {
|
||||
|
||||
DBGC ( async, "ASYNC %p being reaped, exit status %d (%s)\n",
|
||||
async, async->rc, strerror ( async->rc ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( async->aop != NULL );
|
||||
assert ( list_empty ( &async->children ) );
|
||||
|
||||
/* Unlink from hierarchy */
|
||||
if ( async->parent )
|
||||
list_del ( &async->siblings );
|
||||
async->parent = NULL;
|
||||
|
||||
/* Release all resources */
|
||||
if ( async->aop->reap ) {
|
||||
async->aop->reap ( async );
|
||||
} else {
|
||||
async_reap_default ( async );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Mark asynchronous operation as complete
|
||||
*
|
||||
* @v async Asynchronous operation
|
||||
* @v rc Return status code
|
||||
*
|
||||
* An asynchronous operation should call this once it has completed.
|
||||
* After calling async_done(), it must be prepared to be reaped by
|
||||
* having its reap() method called.
|
||||
*/
|
||||
void async_done ( struct async *async, int rc ) {
|
||||
struct async *child;
|
||||
struct async *tmp;
|
||||
|
||||
DBGC ( async, "ASYNC %p completing with status %d (%s)\n",
|
||||
async, rc, strerror ( rc ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
assert ( async->parent != NULL );
|
||||
assert ( rc != -EINPROGRESS );
|
||||
|
||||
/* Store return status code */
|
||||
async->rc = rc;
|
||||
|
||||
/* Disown all of our children */
|
||||
list_for_each_entry_safe ( child, tmp, &async->children, siblings ) {
|
||||
DBGC ( async, "ASYNC %p disowning child ASYNC %p\n",
|
||||
async, child );
|
||||
list_del ( &child->siblings );
|
||||
child->parent = NULL;
|
||||
}
|
||||
|
||||
/* Send SIGCHLD to parent. If we don't have a parent then we
|
||||
* have to take care of our own funeral arrangements.
|
||||
*/
|
||||
if ( async->parent ) {
|
||||
async_signal ( async->parent, SIGCHLD );
|
||||
} else {
|
||||
async_reap ( async );
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Wait for any child asynchronous operation to complete
|
||||
*
|
||||
* @v child Child asynchronous operation
|
||||
* @v rc Child exit status to fill in, or NULL
|
||||
* @v block Block waiting for child operation to complete
|
||||
* @ret aid Asynchronous operation ID, or -1 on error
|
||||
*/
|
||||
aid_t async_wait ( struct async *async, int *rc, int block ) {
|
||||
struct async *child;
|
||||
aid_t child_aid;
|
||||
int dummy_rc;
|
||||
|
||||
DBGC ( async, "ASYNC %p performing %sblocking wait%s\n", async,
|
||||
( block ? "" : "non-" ), ( rc ? "" : " (ignoring status)" ) );
|
||||
|
||||
assert ( async != NULL );
|
||||
|
||||
/* Avoid multiple tests for "if ( rc )" */
|
||||
if ( ! rc )
|
||||
rc = &dummy_rc;
|
||||
|
||||
while ( 1 ) {
|
||||
|
||||
/* Return immediately if we have no children */
|
||||
if ( list_empty ( &async->children ) ) {
|
||||
DBGC ( async, "ASYNC %p has no more children\n",
|
||||
async );
|
||||
*rc = -ECHILD;
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Look for a completed child */
|
||||
list_for_each_entry ( child, &async->children, siblings ) {
|
||||
if ( child->rc == -EINPROGRESS )
|
||||
continue;
|
||||
|
||||
/* Found a completed child */
|
||||
*rc = child->rc;
|
||||
child_aid = child->aid;
|
||||
|
||||
DBGC ( async, "ASYNC %p reaping child ASYNC %p "
|
||||
"(ID %ld)\n", async, child, child_aid );
|
||||
|
||||
/* Reap the child and return */
|
||||
async_reap ( child );
|
||||
return child_aid;
|
||||
}
|
||||
|
||||
/* Return immediately if non-blocking */
|
||||
if ( ! block ) {
|
||||
*rc = -EINPROGRESS;
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Allow processes to run */
|
||||
step();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Wait for any child asynchronous operation to complete, with progress bar
|
||||
*
|
||||
* @v child Child asynchronous operation
|
||||
* @v rc Child exit status to fill in, or NULL
|
||||
* @ret aid Asynchronous operation ID, or -1 on error
|
||||
*/
|
||||
aid_t async_wait_progress ( struct async *async, int *rc ) {
|
||||
struct async *child;
|
||||
long last_progress = -1;
|
||||
long progress;
|
||||
aid_t child_aid;
|
||||
|
||||
do {
|
||||
step();
|
||||
async_signal ( async, SIGUPDATE );
|
||||
if ( async->total ) {
|
||||
progress = ( async->completed / (async->total / 100) );
|
||||
if ( progress != last_progress )
|
||||
printf ( "\rProgress: %d%%", progress );
|
||||
last_progress = progress;
|
||||
}
|
||||
child_aid = async_wait ( async, rc, 0 );
|
||||
} while ( *rc == -EINPROGRESS );
|
||||
|
||||
printf ( "\n" );
|
||||
return child_aid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Default asynchronous operations
|
||||
*
|
||||
* The default is to ignore SIGCHLD (i.e. to automatically reap
|
||||
* children) and to use the default handler (i.e. do nothing) for all
|
||||
* other signals.
|
||||
*/
|
||||
struct async_operations default_async_operations = {
|
||||
.signal = {
|
||||
[SIGCHLD] = SIG_IGN,
|
||||
[SIGUPDATE] = SIG_IGN,
|
||||
},
|
||||
};
|
||||
|
||||
/**
|
||||
* Default asynchronous operations for orphan asynchronous operations
|
||||
*
|
||||
* The default for orphan asynchronous operations is to do nothing for
|
||||
* SIGCHLD (i.e. to not automatically reap children), on the
|
||||
* assumption that you're probably creating the orphan solely in order
|
||||
* to async_wait() on it.
|
||||
*/
|
||||
struct async_operations orphan_async_operations = {
|
||||
.signal = {
|
||||
[SIGCHLD] = SIG_DFL,
|
||||
[SIGUPDATE] = SIG_IGN,
|
||||
},
|
||||
};
|
||||
@ -1,3 +1,5 @@
|
||||
#if 0
|
||||
|
||||
/*
|
||||
* Procedures for drawing on the screen early on in the boot process.
|
||||
*
|
||||
@ -5037,3 +5039,5 @@ static const unsigned char vga_font[cmapsz] BTDATA = {
|
||||
0x00, /* 00000000 */
|
||||
#endif
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <stdarg.h>
|
||||
#include <io.h>
|
||||
|
||||
@ -1,6 +1,7 @@
|
||||
#include "etherboot.h"
|
||||
#include "stddef.h"
|
||||
#include "dev.h"
|
||||
#include <stdio.h>
|
||||
#include <etherboot.h>
|
||||
#include <stddef.h>
|
||||
#include <dev.h>
|
||||
|
||||
/*
|
||||
* Each bus driver defines several methods, which are described in
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#include "etherboot.h"
|
||||
#include "disk.h"
|
||||
#include <etherboot.h>
|
||||
#include <disk.h>
|
||||
|
||||
#warning "disk.c is currently broken"
|
||||
#if 0
|
||||
|
||||
@ -2,9 +2,10 @@
|
||||
MISC Support Routines
|
||||
**************************************************************************/
|
||||
|
||||
#include "etherboot.h"
|
||||
#include "console.h"
|
||||
#include <etherboot.h>
|
||||
#include <console.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
/**************************************************************************
|
||||
IPCHKSUM - Checksum IP Header
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
#if 0
|
||||
|
||||
/*
|
||||
* pcmcia.c
|
||||
*
|
||||
@ -23,12 +25,13 @@
|
||||
* at some point. If there's anything obvious or better, not-so-obvious,
|
||||
* please contact me by e-mail: anselm (AT) hoffmeister (DOT) be *THANKS*
|
||||
*/
|
||||
#include "pcmcia.h"
|
||||
#include "i82365.h"
|
||||
#include <stdio.h>
|
||||
#include <pcmcia.h>
|
||||
#include <i82365.h>
|
||||
#define CODE_STATUS "alpha"
|
||||
#define CODE_VERSION "0.1.3"
|
||||
#include "pcmcia-opts.h"
|
||||
#include "console.h"
|
||||
#include <pcmcia-opts.h>
|
||||
#include <console.h>
|
||||
#include <gpxe/init.h>
|
||||
|
||||
int sockets; /* AHTODO: Phase this out! */
|
||||
@ -118,7 +121,7 @@ static void pcmcia_init_all(void) {
|
||||
printf ( "]\nHighest config available is %d\n", uc[2*(ui+3)] );
|
||||
m = uc[2*(ui+2)];
|
||||
pccsock[i].configoffset = 0;
|
||||
for ( j = 0; j <= m & 3; ++j ) {
|
||||
for ( j = 0; j <= (m & 3); ++j ) {
|
||||
pccsock[i].configoffset += uc[2*(ui+4+j)] << (8*j);
|
||||
}
|
||||
pccsock[i].rmask0 = 0;
|
||||
@ -262,3 +265,5 @@ static void pcmcia_shutdown_all(void) {
|
||||
}
|
||||
|
||||
INIT_FN ( INIT_PCMCIA, pcmcia_init_all, NULL, pcmcia_shutdown_all );
|
||||
|
||||
#endif
|
||||
|
||||
@ -5,6 +5,7 @@
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <etherboot.h>
|
||||
|
||||
static int32_t rnd_seed = 0;
|
||||
|
||||
|
||||
@ -213,7 +213,7 @@ static void serial_init ( void ) {
|
||||
/* rx buffer reg
|
||||
* throw away (unconditionally the first time)
|
||||
*/
|
||||
uart_readb(UART_BASE + UART_RBR);
|
||||
(void) uart_readb(UART_BASE + UART_RBR);
|
||||
/* line status reg */
|
||||
status = uart_readb(UART_BASE + UART_LSR);
|
||||
} while(status & UART_LSR_DR);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user