f859061eaf
In order to avoid creating libfsdriver exceptions, two changes to VFS are necessary: - the returned position field for reads/writes is no longer abused to return the new pipe size; VFS is perfectly capable of updating the size itself; - during system startup, PFS is now sent a mount request, just like all other file systems. In proper "two steps forward, one step back" fashion, the latter point has the consequence that PFS can no longer drop its privileges at startup. This is probably best resolved with a more general solution for all boot image system services. The upside is that PFS no longer needs to be linked with libc. Change-Id: I92e2410cdb0d93d0e6107bae10bc08efc2dbb8b3
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
#include "fs.h"
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/* SEF functions and variables. */
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static void sef_local_startup(void);
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static int sef_cb_init_fresh(int type, sef_init_info_t *info);
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static void sef_cb_signal_handler(int signo);
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/*===========================================================================*
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* main *
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*===========================================================================*/
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int main(int argc, char *argv[])
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{
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/* This is the main routine of this service. */
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/* SEF local startup. */
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env_setargs(argc, argv);
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sef_local_startup();
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/* The fsdriver library does the actual work here. */
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fsdriver_task(&pfs_table);
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return(OK);
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}
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/*===========================================================================*
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* sef_local_startup *
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*===========================================================================*/
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static void sef_local_startup()
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{
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/* Register init callbacks. */
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sef_setcb_init_fresh(sef_cb_init_fresh);
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sef_setcb_init_restart(sef_cb_init_fail);
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/* No live update support for now. */
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/* Register signal callbacks. */
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sef_setcb_signal_handler(sef_cb_signal_handler);
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/* Let SEF perform startup. */
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sef_startup();
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}
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/*===========================================================================*
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* sef_cb_init_fresh *
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*===========================================================================*/
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static int sef_cb_init_fresh(int type, sef_init_info_t *info)
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{
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/* Initialize the pipe file server. */
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int i;
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struct passwd *pw;
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/* Initialize main loop parameters. */
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busy = 0; /* Server is not 'busy' (i.e., inodes in use). */
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/* Init inode table */
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for (i = 0; i < PFS_NR_INODES; ++i) {
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inode[i].i_count = 0;
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}
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init_inode_cache();
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buf_pool();
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return(OK);
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}
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/*===========================================================================*
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* sef_cb_signal_handler *
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*===========================================================================*/
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static void sef_cb_signal_handler(int signo)
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{
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/* Only check for termination signal, ignore anything else. */
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if (signo != SIGTERM) return;
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fsdriver_terminate();
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}
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