Threads: offloading of temp files writing to thread pools. The ngx_thread_write_chain_to_file() function introduced, which uses ngx_file_t thread_handler, thread_ctx and thread_task fields. The task context structure (ngx_thread_file_ctx_t) is the same for both reading and writing, and can be safely shared as long as operations are serialized. The task->handler field is now always set (and not only when task is allocated), as the same task can be used with different handlers. The thread_write flag is introduced in the ngx_temp_file_t structure to explicitly enable use of ngx_thread_write_chain_to_file() in ngx_write_chain_to_temp_file() when supported by caller. In collaboration with Valentin Bartenev.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


CFLAGS = -q -O2 -tWM -w-8004 -w-8012 $(CPU_OPT)

zlib.lib:
	cd $(ZLIB)

	bcc32 -c $(CFLAGS) adler32.c crc32.c deflate.c \
		trees.c zutil.c compress.c \
		inflate.c inffast.c inftrees.c

	tlib zlib.lib +adler32.obj +crc32.obj +deflate.obj \
		+trees.obj +zutil.obj +compress.obj \
		+inflate.obj +inffast.obj +inftrees.obj