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Configuration: automatic migration to the new "share" behavior.

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This commit is contained in:
Zhidao HONG
2021-10-09 10:44:31 +08:00
parent af283833dd
commit 5fa5b1464f
8 changed files with 180 additions and 52 deletions
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7
docs/changes.xml
View File

@@ -56,6 +56,13 @@ variables support in the "chroot" option.
</para>
</change>
<change type="feature">
<para>
automatic adjustment of existing configurations to the new "share" behavior
when updating from previous versions.
</para>
</change>
<change type="bugfix">
<para>
fixed building with glibc 2.34, notably Fedora 35.

2
src/nxt_conf.h
View File

@@ -72,6 +72,8 @@ typedef struct {
nxt_mp_t *pool;
nxt_str_t error;
void *ctx;
nxt_mp_t *conf_pool;
nxt_uint_t ver;
} nxt_conf_validation_t;

21
src/nxt_conf_validation.c
View File

@@ -1624,6 +1624,11 @@ static nxt_int_t
nxt_conf_vldt_share(nxt_conf_validation_t *vldt, nxt_conf_value_t *value,
void *data)
{
u_char *p;
nxt_str_t name, temp;
static nxt_str_t uri = nxt_string("$uri");
if (nxt_conf_type(value) == NXT_CONF_ARRAY) {
if (nxt_conf_array_elements_count(value) == 0) {
return nxt_conf_vldt_error(vldt, "The \"share\" array "
@@ -1636,6 +1641,22 @@ nxt_conf_vldt_share(nxt_conf_validation_t *vldt, nxt_conf_value_t *value,
/* NXT_CONF_STRING */
if (vldt->ver < 12600) {
nxt_conf_get_string(value, &name);
temp.length = name.length + uri.length;
temp.start = nxt_mp_get(vldt->conf_pool, temp.length);
if (nxt_slow_path(temp.start == NULL)) {
return NXT_ERROR;
}
p = nxt_cpymem(temp.start, name.start, name.length);
nxt_memcpy(p, uri.start, uri.length);
nxt_conf_set_string(value, &temp);
}
return nxt_conf_vldt_share_element(vldt, value);
}

117
src/nxt_controller.c
View File

@@ -41,6 +41,8 @@ typedef struct {
static nxt_int_t nxt_controller_prefork(nxt_task_t *task,
nxt_process_t *process, nxt_mp_t *mp);
static nxt_int_t nxt_controller_file_read(nxt_task_t *task, const char *name,
nxt_str_t *str, nxt_mp_t *mp);
static nxt_int_t nxt_controller_start(nxt_task_t *task,
nxt_process_data_t *data);
static void nxt_controller_process_new_port_handler(nxt_task_t *task,
@@ -154,12 +156,9 @@ const nxt_process_init_t nxt_controller_process = {
static nxt_int_t
nxt_controller_prefork(nxt_task_t *task, nxt_process_t *process, nxt_mp_t *mp)
{
ssize_t n;
nxt_int_t ret;
nxt_str_t *conf;
nxt_file_t file;
nxt_str_t ver;
nxt_int_t ret, num;
nxt_runtime_t *rt;
nxt_file_info_t fi;
nxt_controller_init_t ctrl_init;
nxt_log(task, NXT_LOG_INFO, "controller started");
@@ -168,37 +167,36 @@ nxt_controller_prefork(nxt_task_t *task, nxt_process_t *process, nxt_mp_t *mp)
nxt_memzero(&ctrl_init, sizeof(nxt_controller_init_t));
conf = &ctrl_init.conf;
/*
* Since configuration version has only been introduced in 1.26,
* set the default version to 1.25.
*/
nxt_conf_ver = 12500;
nxt_memzero(&file, sizeof(nxt_file_t));
file.name = (nxt_file_name_t *) rt->conf;
ret = nxt_file_open(task, &file, NXT_FILE_RDONLY, NXT_FILE_OPEN, 0);
ret = nxt_controller_file_read(task, rt->conf, &ctrl_init.conf, mp);
if (nxt_slow_path(ret == NXT_ERROR)) {
return NXT_ERROR;
}
if (ret == NXT_OK) {
ret = nxt_file_info(&file, &fi);
if (nxt_fast_path(ret == NXT_OK && nxt_is_file(&fi))) {
conf->length = nxt_file_size(&fi);
conf->start = nxt_mp_alloc(mp, conf->length);
if (nxt_slow_path(conf->start == NULL)) {
nxt_file_close(task, &file);
return NXT_ERROR;
}
n = nxt_file_read(&file, conf->start, conf->length, 0);
if (nxt_slow_path(n != (ssize_t) conf->length)) {
conf->start = NULL;
conf->length = 0;
nxt_alert(task, "failed to restore previous configuration: "
"cannot read the file");
}
ret = nxt_controller_file_read(task, rt->ver, &ver, mp);
if (nxt_slow_path(ret == NXT_ERROR)) {
return NXT_ERROR;
}
nxt_file_close(task, &file);
if (ret == NXT_OK) {
num = nxt_int_parse(ver.start, ver.length);
if (nxt_slow_path(num < 0)) {
nxt_alert(task, "failed to restore previous configuration: "
"invalid version string \"%V\"", &ver);
nxt_str_null(&ctrl_init.conf);
} else {
nxt_conf_ver = num;
}
}
}
#if (NXT_TLS)
@@ -213,6 +211,57 @@ nxt_controller_prefork(nxt_task_t *task, nxt_process_t *process, nxt_mp_t *mp)
}
static nxt_int_t
nxt_controller_file_read(nxt_task_t *task, const char *name, nxt_str_t *str,
nxt_mp_t *mp)
{
ssize_t n;
nxt_int_t ret;
nxt_file_t file;
nxt_file_info_t fi;
nxt_memzero(&file, sizeof(nxt_file_t));
file.name = (nxt_file_name_t *) name;
ret = nxt_file_open(task, &file, NXT_FILE_RDONLY, NXT_FILE_OPEN, 0);
if (ret == NXT_OK) {
ret = nxt_file_info(&file, &fi);
if (nxt_slow_path(ret != NXT_OK)) {
goto fail;
}
if (nxt_fast_path(nxt_is_file(&fi))) {
str->length = nxt_file_size(&fi);
str->start = nxt_mp_nget(mp, str->length);
if (nxt_slow_path(str->start == NULL)) {
goto fail;
}
n = nxt_file_read(&file, str->start, str->length, 0);
if (nxt_slow_path(n != (ssize_t) str->length)) {
goto fail;
}
nxt_file_close(task, &file);
return NXT_OK;
}
nxt_file_close(task, &file);
}
return NXT_DECLINED;
fail:
nxt_file_close(task, &file);
return NXT_ERROR;
}
#if (NXT_TLS)
static void
@@ -293,6 +342,8 @@ nxt_controller_start(nxt_task_t *task, nxt_process_data_t *data)
}
vldt.conf = conf;
vldt.conf_pool = mp;
vldt.ver = nxt_conf_ver;
ret = nxt_conf_validate(&vldt);
@@ -1224,6 +1275,8 @@ nxt_controller_process_config(nxt_task_t *task, nxt_controller_request_t *req,
vldt.conf = value;
vldt.pool = c->mem_pool;
vldt.conf_pool = mp;
vldt.ver = NXT_VERNUM;
rc = nxt_conf_validate(&vldt);
@@ -1305,6 +1358,8 @@ nxt_controller_process_config(nxt_task_t *task, nxt_controller_request_t *req,
vldt.conf = value;
vldt.pool = c->mem_pool;
vldt.conf_pool = mp;
vldt.ver = NXT_VERNUM;
rc = nxt_conf_validate(&vldt);

67
src/nxt_main_process.c
View File

@@ -63,6 +63,8 @@ static void nxt_main_port_modules_handler(nxt_task_t *task,
static int nxt_cdecl nxt_app_lang_compare(const void *v1, const void *v2);
static void nxt_main_port_conf_store_handler(nxt_task_t *task,
nxt_port_recv_msg_t *msg);
static nxt_int_t nxt_main_file_store(nxt_task_t *task, const char *tmp_name,
const char *name, u_char *buf, size_t size);
static void nxt_main_port_access_log_handler(nxt_task_t *task,
nxt_port_recv_msg_t *msg);
@@ -77,6 +79,8 @@ const nxt_sig_event_t nxt_main_process_signals[] = {
};
nxt_uint_t nxt_conf_ver;
static nxt_bool_t nxt_exiting;
@@ -1419,11 +1423,10 @@ static void
nxt_main_port_conf_store_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
{
void *p;
size_t size;
ssize_t n;
size_t n, size;
nxt_int_t ret;
nxt_file_t file;
nxt_runtime_t *rt;
u_char ver[NXT_INT_T_LEN];
p = MAP_FAILED;
@@ -1457,29 +1460,20 @@ nxt_main_port_conf_store_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
nxt_debug(task, "conf_store_handler(%uz): %*s", size, size, p);
nxt_memzero(&file, sizeof(nxt_file_t));
rt = task->thread->runtime;
file.name = (nxt_file_name_t *) rt->conf_tmp;
if (nxt_conf_ver != NXT_VERNUM) {
n = nxt_sprintf(ver, ver + NXT_INT_T_LEN, "%d", NXT_VERNUM) - ver;
if (nxt_slow_path(nxt_file_open(task, &file, NXT_FILE_WRONLY,
NXT_FILE_TRUNCATE, NXT_FILE_OWNER_ACCESS)
!= NXT_OK))
{
goto error;
ret = nxt_main_file_store(task, rt->ver_tmp, rt->ver, ver, n);
if (nxt_slow_path(ret != NXT_OK)) {
goto error;
}
nxt_conf_ver = NXT_VERNUM;
}
n = nxt_file_write(&file, p, size, 0);
nxt_file_close(task, &file);
if (nxt_slow_path(n != (ssize_t) size)) {
(void) nxt_file_delete(file.name);
goto error;
}
ret = nxt_file_rename(file.name, (nxt_file_name_t *) rt->conf);
ret = nxt_main_file_store(task, rt->conf_tmp, rt->conf, p, size);
if (nxt_fast_path(ret == NXT_OK)) {
goto cleanup;
@@ -1502,6 +1496,37 @@ cleanup:
}
static nxt_int_t
nxt_main_file_store(nxt_task_t *task, const char *tmp_name, const char *name,
u_char *buf, size_t size)
{
ssize_t n;
nxt_int_t ret;
nxt_file_t file;
nxt_memzero(&file, sizeof(nxt_file_t));
file.name = (nxt_file_name_t *) name;
ret = nxt_file_open(task, &file, NXT_FILE_WRONLY, NXT_FILE_TRUNCATE,
NXT_FILE_OWNER_ACCESS);
if (nxt_slow_path(ret != NXT_OK)) {
return NXT_ERROR;
}
n = nxt_file_write(&file, buf, size, 0);
nxt_file_close(task, &file);
if (nxt_slow_path(n != (ssize_t) size)) {
(void) nxt_file_delete(file.name);
return NXT_ERROR;
}
return nxt_file_rename(file.name, (nxt_file_name_t *) name);
}
static void
nxt_main_port_access_log_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
{

1
src/nxt_main_process.h
View File

@@ -23,6 +23,7 @@ nxt_int_t nxt_main_process_start(nxt_thread_t *thr, nxt_task_t *task,
nxt_runtime_t *runtime);
NXT_EXPORT extern nxt_uint_t nxt_conf_ver;
NXT_EXPORT extern const nxt_process_init_t nxt_discovery_process;
NXT_EXPORT extern const nxt_process_init_t nxt_controller_process;
NXT_EXPORT extern const nxt_process_init_t nxt_router_process;

15
src/nxt_runtime.c
View File

@@ -839,6 +839,21 @@ nxt_runtime_conf_init(nxt_task_t *task, nxt_runtime_t *rt)
slash = "/";
}
ret = nxt_file_name_create(rt->mem_pool, &file_name, "%s%sversion%Z",
rt->state, slash);
if (nxt_slow_path(ret != NXT_OK)) {
return NXT_ERROR;
}
rt->ver = (char *) file_name.start;
ret = nxt_file_name_create(rt->mem_pool, &file_name, "%s.tmp%Z", rt->ver);
if (nxt_slow_path(ret != NXT_OK)) {
return NXT_ERROR;
}
rt->ver_tmp = (char *) file_name.start;
ret = nxt_file_name_create(rt->mem_pool, &file_name, "%s%sconf.json%Z",
rt->state, slash);
if (nxt_slow_path(ret != NXT_OK)) {

2
src/nxt_runtime.h
View File

@@ -65,6 +65,8 @@ struct nxt_runtime_s {
const char *log;
const char *modules;
const char *state;
const char *ver;
const char *ver_tmp;
const char *conf;
const char *conf_tmp;
const char *control;