MySQL 9.0.0
Source Code Documentation
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Macros | |
#define | mysql_thread_register(P1, P2, P3) inline_mysql_thread_register(P1, P2, P3) |
Thread registration. More... | |
#define | mysql_thread_create(K, P1, P2, P3, P4) inline_mysql_thread_create(K, 0, P1, P2, P3, P4) |
Instrumented my_thread_create. More... | |
#define | mysql_thread_create_seq(K, S, P1, P2, P3, P4) inline_mysql_thread_create(K, S, P1, P2, P3, P4) |
Instrumented my_thread_create. More... | |
#define | mysql_thread_set_psi_id(I) inline_mysql_thread_set_psi_id(I) |
Set the thread identifier for the instrumentation. More... | |
#define | mysql_thread_set_psi_THD(T) inline_mysql_thread_set_psi_THD(T) |
Set the thread sql session for the instrumentation. More... | |
Functions | |
static void | inline_mysql_thread_register (const char *category, PSI_thread_info *info, int count) |
static int | inline_mysql_thread_create (PSI_thread_key key, unsigned int sequence_number, my_thread_handle *thread, const my_thread_attr_t *attr, my_start_routine start_routine, void *arg) |
static void | inline_mysql_thread_set_psi_id (my_thread_id id) |
static void | inline_mysql_thread_set_psi_THD (THD *thd) |
static void | mysql_thread_set_peer_port (uint port) |
static void | mysql_thread_set_secondary_engine (bool secondary) |
static void | mysql_thread_set_info (const char *str, int len) |
Set the INFO attribute in the thread instrumentation. More... | |
#define mysql_thread_create | ( | K, | |
P1, | |||
P2, | |||
P3, | |||
P4 | |||
) | inline_mysql_thread_create(K, 0, P1, P2, P3, P4) |
Instrumented my_thread_create.
This function creates both the thread instrumentation and a thread. mysql_thread_create
is a replacement for my_thread_create
. The parameter P4 (or, if it is NULL, P1) will be used as the instrumented thread "identity". Providing a P1 / P4 parameter with a different value for each call will on average improve performances, since this thread identity value is used internally to randomize access to data and prevent contention. This is optional, and the improvement is not guaranteed, only statistical.
K | The PSI_thread_key for this instrumented thread |
P1 | my_thread_create parameter 1 |
P2 | my_thread_create parameter 2 |
P3 | my_thread_create parameter 3 |
P4 | my_thread_create parameter 4 |
#define mysql_thread_create_seq | ( | K, | |
S, | |||
P1, | |||
P2, | |||
P3, | |||
P4 | |||
) | inline_mysql_thread_create(K, S, P1, P2, P3, P4) |
Instrumented my_thread_create.
K | The PSI_thread_key for this instrumented thread |
S | The sequence number for this instrumented thread |
P1 | my_thread_create parameter 1 |
P2 | my_thread_create parameter 2 |
P3 | my_thread_create parameter 3 |
P4 | my_thread_create parameter 4 |
#define mysql_thread_register | ( | P1, | |
P2, | |||
P3 | |||
) | inline_mysql_thread_register(P1, P2, P3) |
Thread registration.
#define mysql_thread_set_psi_id | ( | I | ) | inline_mysql_thread_set_psi_id(I) |
Set the thread identifier for the instrumentation.
I | The thread identifier |
#define mysql_thread_set_psi_THD | ( | T | ) | inline_mysql_thread_set_psi_THD(T) |
Set the thread sql session for the instrumentation.
T | The thread sql session |
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Set the INFO attribute in the thread instrumentation.
str | query string |
len | query length |
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