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ruanhaishen
redis
Commits
850b64c1
Commit
850b64c1
authored
Dec 20, 2018
by
antirez
Browse files
Revert shared APIs to modify the design.
parent
ab37289f
Changes
3
Hide whitespace changes
Inline
Side-by-side
src/module.c
View file @
850b64c1
...
...
@@ -47,16 +47,7 @@ struct RedisModule {
int
ver
;
/* Module version. We use just progressive integers. */
int
apiver
;
/* Module API version as requested during initialization.*/
list
*
types
;
/* Module data types. */
list
*
usedBy
;
/* list of modules names using this module api. */
list
*
using
;
/* list of modules names that this module is using thier api . */
list
*
exportedFunctions
;
/* list of function names exported by this module. */
};
struct
ModuleExportedApi
{
void
*
funcPointer
;
struct
RedisModule
*
module
;
};
typedef
struct
RedisModule
RedisModule
;
static
dict
*
modules
;
/* Hash table of modules. SDS -> RedisModule ptr.*/
...
...
@@ -709,9 +700,6 @@ void RM_SetModuleAttribs(RedisModuleCtx *ctx, const char *name, int ver, int api
module
->
ver
=
ver
;
module
->
apiver
=
apiver
;
module
->
types
=
listCreate
();
module
->
usedBy
=
listCreate
();
module
->
using
=
listCreate
();
module
->
exportedFunctions
=
listCreate
();
ctx
->
module
=
module
;
}
...
...
@@ -4627,59 +4615,6 @@ void RM_GetRandomHexChars(char *dst, size_t len) {
getRandomHexChars
(
dst
,
len
);
}
/* Used to register an api to be used by other modules. */
int
RM_RegisterApi
(
RedisModuleCtx
*
ctx
,
const
char
*
funcname
,
void
*
funcptr
)
{
struct
ModuleExportedApi
*
eapi
=
zmalloc
(
sizeof
(
*
eapi
));
eapi
->
module
=
ctx
->
module
;
eapi
->
funcPointer
=
funcptr
;
if
(
dictAdd
(
server
.
exportedapi
,
(
char
*
)
funcname
,
eapi
)
!=
DICT_OK
){
zfree
(
eapi
);
return
REDISMODULE_ERR
;
}
listAddNodeHead
(
ctx
->
module
->
exportedFunctions
,
(
char
*
)
funcname
);
return
REDISMODULE_OK
;
}
static
inline
int
IsModuleInList
(
list
*
l
,
const
char
*
moduleName
){
listIter
*
iter
=
listGetIterator
(
l
,
AL_START_HEAD
);
listNode
*
node
=
NULL
;
while
((
node
=
listNext
(
iter
))){
char
*
name
=
listNodeValue
(
node
);
if
(
strcmp
(
name
,
moduleName
)
==
0
){
listReleaseIterator
(
iter
);
return
1
;
}
}
listReleaseIterator
(
iter
);
return
0
;
}
static
inline
void
RemoveFromList
(
list
*
l
,
const
char
*
moduleName
){
listIter
*
iter
=
listGetIterator
(
l
,
AL_START_HEAD
);
listNode
*
node
=
NULL
;
while
((
node
=
listNext
(
iter
))){
char
*
name
=
listNodeValue
(
node
);
if
(
strcmp
(
name
,
moduleName
)
==
0
){
listDelNode
(
l
,
node
);
return
;
}
}
listReleaseIterator
(
iter
);
}
void
*
RM_GetExportedApi
(
RedisModuleCtx
*
ctx
,
const
char
*
funcname
)
{
dictEntry
*
entry
=
dictFind
(
server
.
exportedapi
,
funcname
);
if
(
!
entry
){
return
NULL
;
}
struct
ModuleExportedApi
*
eapi
=
dictGetVal
(
entry
);
if
(
!
IsModuleInList
(
eapi
->
module
->
usedBy
,
ctx
->
module
->
name
)){
listAddNodeHead
(
eapi
->
module
->
usedBy
,
ctx
->
module
->
name
);
listAddNodeHead
(
ctx
->
module
->
using
,
eapi
->
module
->
name
);
}
return
eapi
->
funcPointer
;
}
/* --------------------------------------------------------------------------
* Modules API internals
* -------------------------------------------------------------------------- */
...
...
@@ -4800,28 +4735,6 @@ void moduleUnregisterCommands(struct RedisModule *module) {
dictReleaseIterator
(
di
);
}
void
moduleUnregisterApi
(
struct
RedisModule
*
module
)
{
listIter
*
iter
=
listGetIterator
(
module
->
exportedFunctions
,
AL_START_HEAD
);
listNode
*
node
=
NULL
;
while
((
node
=
listNext
(
iter
))){
char
*
functionName
=
listNodeValue
(
node
);
struct
ModuleExportedApi
*
eapi
=
dictFetchValue
(
server
.
exportedapi
,
functionName
);
serverAssert
(
eapi
);
zfree
(
eapi
);
dictDelete
(
server
.
exportedapi
,
functionName
);
}
listReleaseIterator
(
iter
);
iter
=
listGetIterator
(
module
->
using
,
AL_START_HEAD
);
node
=
NULL
;
while
((
node
=
listNext
(
iter
))){
char
*
moduleName
=
listNodeValue
(
node
);
struct
RedisModule
*
usingModule
=
dictFetchValue
(
modules
,
moduleName
);
serverAssert
(
usingModule
);
RemoveFromList
(
usingModule
->
usedBy
,
module
->
name
);
}
listReleaseIterator
(
iter
);
}
/* Load a module and initialize it. On success C_OK is returned, otherwise
* C_ERR is returned. */
int
moduleLoad
(
const
char
*
path
,
void
**
module_argv
,
int
module_argc
)
{
...
...
@@ -4881,12 +4794,6 @@ int moduleUnload(sds name) {
return
REDISMODULE_ERR
;
}
if
(
listLength
(
module
->
usedBy
))
{
errno
=
EPERM
;
return
REDISMODULE_ERR
;
}
moduleUnregisterApi
(
module
);
moduleUnregisterCommands
(
module
);
/* Remove any notification subscribers this module might have */
...
...
@@ -4919,7 +4826,6 @@ void moduleCommand(client *c) {
if
(
c
->
argc
==
2
&&
!
strcasecmp
(
subcmd
,
"help"
))
{
const
char
*
help
[]
=
{
"LIST -- Return a list of loaded modules."
,
"LISTAPI <module-name> -- Return a list of exported api."
,
"LOAD <path> [arg ...] -- Load a module library from <path>."
,
"UNLOAD <name> -- Unload a module."
,
NULL
...
...
@@ -4952,9 +4858,6 @@ NULL
case
EBUSY
:
errmsg
=
"the module exports one or more module-side data types, can't unload"
;
break
;
case
EPERM
:
errmsg
=
"the module api is used by other modules, please unload them first and try again."
;
break
;
default:
errmsg
=
"operation not possible."
;
break
;
...
...
@@ -4976,21 +4879,6 @@ NULL
addReplyLongLong
(
c
,
module
->
ver
);
}
dictReleaseIterator
(
di
);
}
else
if
(
!
strcasecmp
(
subcmd
,
"listapi"
)
&&
c
->
argc
==
3
)
{
char
*
moduleName
=
c
->
argv
[
2
]
->
ptr
;
struct
RedisModule
*
module
=
dictFetchValue
(
modules
,
moduleName
);
if
(
!
module
){
addReplyErrorFormat
(
c
,
"Error listing module api: no such module %s"
,
moduleName
);
return
;
}
addReplyMultiBulkLen
(
c
,
listLength
(
module
->
exportedFunctions
));
listIter
*
iter
=
listGetIterator
(
module
->
exportedFunctions
,
AL_START_HEAD
);
listNode
*
node
=
NULL
;
while
((
node
=
listNext
(
iter
))){
char
*
functionName
=
listNodeValue
(
node
);
addReplyBulkCString
(
c
,
functionName
);
}
listReleaseIterator
(
iter
);
}
else
{
addReplySubcommandSyntaxError
(
c
);
return
;
...
...
@@ -5006,7 +4894,6 @@ size_t moduleCount(void) {
* file so that's easy to seek it to add new entries. */
void
moduleRegisterCoreAPI
(
void
)
{
server
.
moduleapi
=
dictCreate
(
&
moduleAPIDictType
,
NULL
);
server
.
exportedapi
=
dictCreate
(
&
moduleAPIDictType
,
NULL
);
REGISTER_API
(
Alloc
);
REGISTER_API
(
Calloc
);
REGISTER_API
(
Realloc
);
...
...
@@ -5157,6 +5044,4 @@ void moduleRegisterCoreAPI(void) {
REGISTER_API
(
DictPrev
);
REGISTER_API
(
DictCompareC
);
REGISTER_API
(
DictCompare
);
REGISTER_API
(
RegisterApi
);
REGISTER_API
(
GetExportedApi
);
}
src/redismodule.h
View file @
850b64c1
...
...
@@ -332,8 +332,6 @@ void REDISMODULE_API_FUNC(RedisModule_GetRandomBytes)(unsigned char *dst, size_t
void
REDISMODULE_API_FUNC
(
RedisModule_GetRandomHexChars
)(
char
*
dst
,
size_t
len
);
void
REDISMODULE_API_FUNC
(
RedisModule_SetDisconnectCallback
)(
RedisModuleBlockedClient
*
bc
,
RedisModuleDisconnectFunc
callback
);
void
REDISMODULE_API_FUNC
(
RedisModule_SetClusterFlags
)(
RedisModuleCtx
*
ctx
,
uint64_t
flags
);
int
REDISMODULE_API_FUNC
(
RedisModule_RegisterApi
)(
RedisModuleCtx
*
ctx
,
const
char
*
funcname
,
void
*
funcptr
);
void
*
REDISMODULE_API_FUNC
(
RedisModule_GetExportedApi
)(
RedisModuleCtx
*
ctx
,
const
char
*
funcname
);
#endif
/* This is included inline inside each Redis module. */
...
...
@@ -494,8 +492,6 @@ static int RedisModule_Init(RedisModuleCtx *ctx, const char *name, int ver, int
REDISMODULE_GET_API
(
GetRandomBytes
);
REDISMODULE_GET_API
(
GetRandomHexChars
);
REDISMODULE_GET_API
(
SetClusterFlags
);
REDISMODULE_GET_API
(
RegisterApi
);
REDISMODULE_GET_API
(
GetExportedApi
);
#endif
if
(
RedisModule_IsModuleNameBusy
&&
RedisModule_IsModuleNameBusy
(
name
))
return
REDISMODULE_ERR
;
...
...
src/server.h
View file @
850b64c1
...
...
@@ -955,7 +955,6 @@ struct redisServer {
int
always_show_logo
;
/* Show logo even for non-stdout logging. */
/* Modules */
dict
*
moduleapi
;
/* Exported APIs dictionary for modules. */
dict
*
exportedapi
;
/* Api exported by other modules. */
list
*
loadmodule_queue
;
/* List of modules to load at startup. */
int
module_blocked_pipe
[
2
];
/* Pipe used to awake the event loop if a
client blocked on a module command needs
...
...
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