Introduced worker number, ngx_worker.

src/os/unix/ngx_process_cycle.c

diff --git a/src/os/unix/ngx_process_cycle.c b/src/os/unix/ngx_process_cycle.c
index 5067632..c69932e 100644
--- a/src/os/unix/ngx_process_cycle.c
+++ b/src/os/unix/ngx_process_cycle.c
@@ -29,6 +29,7 @@
 
 
 ngx_uint_t    ngx_process;
+ngx_uint_t    ngx_worker;
 ngx_pid_t     ngx_pid;
 
 sig_atomic_t  ngx_reap;
@@ -731,6 +732,7 @@
     ngx_connection_t  *c;
 
     ngx_process = NGX_PROCESS_WORKER;
+    ngx_worker = worker;
 
     ngx_worker_process_init(cycle, worker);
 

src/os/unix/ngx_process_cycle.h

diff --git a/src/os/unix/ngx_process_cycle.h b/src/os/unix/ngx_process_cycle.h
index d44c377..69495d5 100644
--- a/src/os/unix/ngx_process_cycle.h
+++ b/src/os/unix/ngx_process_cycle.h
@@ -39,6 +39,7 @@
 
 
 extern ngx_uint_t      ngx_process;
+extern ngx_uint_t      ngx_worker;
 extern ngx_pid_t       ngx_pid;
 extern ngx_pid_t       ngx_new_binary;
 extern ngx_uint_t      ngx_inherited;

src/os/win32/ngx_process_cycle.c

diff --git a/src/os/win32/ngx_process_cycle.c b/src/os/win32/ngx_process_cycle.c
index acd70cf..203bece 100644
--- a/src/os/win32/ngx_process_cycle.c
+++ b/src/os/win32/ngx_process_cycle.c
@@ -29,6 +29,7 @@
 
 
 ngx_uint_t     ngx_process;
+ngx_uint_t     ngx_worker;
 ngx_pid_t      ngx_pid;
 
 ngx_uint_t     ngx_inherited;

src/os/win32/ngx_process_cycle.h

diff --git a/src/os/win32/ngx_process_cycle.h b/src/os/win32/ngx_process_cycle.h
index f38c388..95d2743 100644
--- a/src/os/win32/ngx_process_cycle.h
+++ b/src/os/win32/ngx_process_cycle.h
@@ -25,6 +25,7 @@
 
 
 extern ngx_uint_t      ngx_process;
+extern ngx_uint_t      ngx_worker;
 extern ngx_pid_t       ngx_pid;
 extern ngx_uint_t      ngx_exiting;