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sef: New definitions and event loop refactory.

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Change-Id: I0cd0906e513b2b804b94eebc86c76b5c402b572b
This commit is contained in:
Cristiano Giuffrida 2014-09-29 12:28:33 +02:00 committed by David van Moolenbroek
parent d40f735640
commit 006d6e94f9
2 changed files with 98 additions and 32 deletions
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31
minix/include/minix/sef.h
View file

@ -13,6 +13,9 @@ void sef_cancel(void);
void __dead sef_exit(int status);
#define sef_receive(src, m_ptr) sef_receive_status(src, m_ptr, NULL)
/* SEF global definitions. */
#define SEF_STATE_TRANSFER_GID 0
/* SEF Debug. */
#include <stdio.h>
#define sef_dprint printf
@ -24,14 +27,25 @@ void __dead sef_exit(int status);
*===========================================================================*/
/* What to intercept. */
#define INTERCEPT_SEF_INIT_REQUESTS 1
#define IS_SEF_INIT_REQUEST(mp) ((mp)->m_type == RS_INIT \
#define SEF_INIT_REQUEST_TYPE RS_INIT
#define IS_SEF_INIT_REQUEST(mp, status) ((mp)->m_type == RS_INIT \
&& (mp)->m_source == RS_PROC_NR)
#define SEF_COPY_OLD_TO_NEW 0x001
#define SEF_COPY_NEW_TO_NEW 0x002
#define SEF_COPY_DEST_OFFSET 0x004
#define SEF_COPY_SRC_OFFSET 0X008
/* Type definitions. */
typedef struct {
int flags;
cp_grant_id_t rproctab_gid;
endpoint_t endpoint;
endpoint_t old_endpoint;
int restarts;
void* init_buff_start;
void* init_buff_cleanup_start;
size_t init_buff_len;
} sef_init_info_t;
/* Callback type definitions. */
@ -69,8 +83,17 @@ int sef_cb_init_response_rs_reply(message *m_ptr);
#define SEF_INIT_LU 1 /* init after live update */
#define SEF_INIT_RESTART 2 /* init after restart */
/* Init flags (live update flags can be used as init flags as well). */
#define SEF_INIT_CRASH 0x1
#define SEF_INIT_FAIL 0x2
#define SEF_INIT_TIMEOUT 0x4
#define SEF_INIT_DEFCB 0x8
#define SEF_INIT_SCRIPT_RESTART 0x10
#define SEF_INIT_ST 0x20 /* force state transfer init */
/* Debug. */
#define SEF_INIT_DEBUG_DEFAULT 0
#define SEF_INIT_ALLOW_DEBUG_INIT_FLAGS 1
#ifndef SEF_INIT_DEBUG
#define SEF_INIT_DEBUG SEF_INIT_DEBUG_DEFAULT
@ -85,6 +108,7 @@ int sef_cb_init_response_rs_reply(message *m_ptr);
*===========================================================================*/
/* What to intercept. */
#define INTERCEPT_SEF_PING_REQUESTS 1
#define SEF_PING_REQUEST_TYPE NOTIFY_MESSAGE
#define IS_SEF_PING_REQUEST(mp, status) (is_ipc_notify(status) \
&& (mp)->m_source == RS_PROC_NR)
@ -120,6 +144,7 @@ void sef_cb_ping_reply_pong(endpoint_t source);
*===========================================================================*/
/* What to intercept. */
#define INTERCEPT_SEF_LU_REQUESTS 1
#define SEF_LU_REQUEST_TYPE RS_LU_PREPARE
#define IS_SEF_LU_REQUEST(mp, status) ((mp)->m_type == RS_LU_PREPARE \
&& (mp)->m_source == RS_PROC_NR)
@ -207,7 +232,7 @@ int sef_cb_lu_response_rs_reply(message *m_ptr);
#define SEF_LU_IS_IDENTITY_UPDATE(F) (((F) & (SEF_LU_SELF|SEF_LU_NOMMAP|SEF_LU_ASR|SEF_INIT_ST)) == SEF_LU_SELF)
/* Debug. */
#define SEF_LU_DEBUG_DEFAULT 1
#define SEF_LU_DEBUG_DEFAULT 0
#define SEF_LU_ALWAYS_ALLOW_DEBUG_STATES 1
#ifndef SEF_LU_DEBUG
@ -223,6 +248,7 @@ int sef_cb_lu_response_rs_reply(message *m_ptr);
*===========================================================================*/
/* What to intercept. */
#define INTERCEPT_SEF_SIGNAL_REQUESTS 1
#define SEF_SIGNAL_REQUEST_TYPE SIGS_SIGNAL_RECEIVED
#define IS_SEF_SIGNAL_REQUEST(mp, status) \
(((mp)->m_type == SIGS_SIGNAL_RECEIVED && (mp)->m_source < INIT_PROC_NR) \
|| (is_ipc_notify(status) && (mp)->m_source == SYSTEM))
@ -283,6 +309,7 @@ void sef_setcb_gcov(sef_cb_gcov_t cb);
*===========================================================================*/
/* What to intercept. */
#define INTERCEPT_SEF_FI_REQUESTS 1
#define SEF_FI_REQUEST_TYPE COMMON_REQ_FI_CTL
#define IS_SEF_FI_REQUEST(mp, status) \
(m_ptr->m_type == COMMON_REQ_FI_CTL)

47
minix/lib/libsys/sef.c
View file

@ -107,7 +107,7 @@ void sef_startup()
if(r != OK) {
panic("unable to ipc_receive from RS: %d", r);
}
} while(!IS_SEF_INIT_REQUEST(&m));
} while(!IS_SEF_INIT_REQUEST(&m, status));
/* Process initialization request for this system service. */
if((r = do_sef_init_request(&m)) != OK) {
@ -127,7 +127,7 @@ void sef_startup()
int sef_receive_status(endpoint_t src, message *m_ptr, int *status_ptr)
{
/* SEF receive() interface for system services. */
int r, status;
int r, status, m_type;
sef_self_receiving = TRUE;
@ -151,51 +151,90 @@ int sef_receive_status(endpoint_t src, message *m_ptr, int *status_ptr)
return r;
}
m_type = m_ptr->m_type;
if (is_ipc_notify(status)) {
switch (m_ptr->m_source) {
case SYSTEM:
m_type = SEF_SIGNAL_REQUEST_TYPE;
break;
case RS_PROC_NR:
m_type = SEF_PING_REQUEST_TYPE;
break;
}
}
switch(m_type) {
#if INTERCEPT_SEF_INIT_REQUESTS
case SEF_INIT_REQUEST_TYPE:
/* Intercept SEF Init requests. */
if(IS_SEF_INIT_REQUEST(m_ptr, status)) {
/* Ignore spurious init requests. */
if (m_ptr->m_rs_init.type != SEF_INIT_FRESH
|| sef_self_endpoint != VM_PROC_NR)
continue;
}
break;
#endif
#if INTERCEPT_SEF_PING_REQUESTS
case SEF_PING_REQUEST_TYPE:
/* Intercept SEF Ping requests. */
if(IS_SEF_PING_REQUEST(m_ptr, status)) {
if(do_sef_ping_request(m_ptr) == OK) {
continue;
}
}
break;
#endif
#if INTERCEPT_SEF_LU_REQUESTS
case SEF_LU_REQUEST_TYPE:
/* Intercept SEF Live update requests. */
if(IS_SEF_LU_REQUEST(m_ptr, status)) {
if(do_sef_lu_request(m_ptr) == OK) {
continue;
}
}
break;
#endif
#if INTERCEPT_SEF_SIGNAL_REQUESTS
case SEF_SIGNAL_REQUEST_TYPE:
/* Intercept SEF Signal requests. */
if(IS_SEF_SIGNAL_REQUEST(m_ptr, status)) {
if(do_sef_signal_request(m_ptr) == OK) {
continue;
}
}
break;
#endif
#if INTERCEPT_SEF_GCOV_REQUESTS && USE_COVERAGE
case SEF_GCOV_REQUEST_TYPE:
/* Intercept GCOV data requests (sent by VFS in vfs/gcov.c). */
if(IS_SEF_GCOV_REQUEST(m_ptr, status)) {
if(do_sef_gcov_request(m_ptr) == OK) {
continue;
}
}
break;
#endif
#ifdef INTERCEPT_SEF_FI_REQUESTS
/* Intercept Fault injection requests. */
#if INTERCEPT_SEF_FI_REQUESTS
case SEF_FI_REQUEST_TYPE:
/* Intercept SEF Fault Injection requests. */
if(IS_SEF_FI_REQUEST(m_ptr, status)) {
if(do_sef_fi_request(m_ptr) == OK) {
continue;
}
}
break;
#endif
default:
break;
}
/* If we get this far, this is not a valid SEF request, return and
* let the caller deal with that.
*/