Top Level Namespace
Defined Under Namespace
Modules: Kernel, MemberNames, Zookeeper, ZookeeperACLs, ZookeeperCallbacks, ZookeeperCommon, ZookeeperConstants, ZookeeperEM, ZookeeperExceptions, ZookeeperStat Classes: CallStruct, CallingFunction, Exception, GeneratedCode, WrapperFunction
Constant Summary collapse
- HERE =
File.(File.dirname(__FILE__))
- BUNDLE =
Dir.glob("zkc-*.tar.gz").first
- BUNDLE_PATH =
File.join(HERE, 'c')
- ZK_DEBUG =
(ENV['DEBUG'] or ARGV.any? { |arg| arg == '--debug' })
- ZK_DEV =
ENV['ZK_DEV']
- DEBUG_CFLAGS =
" -O0 -ggdb3 -DHAVE_DEBUG -fstack-protector-all"
- REGEXP =
the idea here is to take each zoo_* function declaration in the header file, and turn it into a calling arguments struct, a wrapper function and a macro for packing the values.
so for:
ZOOAPI int zoo_acreate(zhandle_t *zh, const char *path, const char *value, int valuelen, const struct ACL_vector *acl, int flags, string_completion_t completion, const void *data);
we want
typedef struct { zhandle_t *zh; const char *path; const char *value; int valuelen; const struct ACL_vector *acl; int flags; string_completion_t completion; const void *data; } zkrb_zoo_acreate_args_t; static VALUE zkrb_gvl_zoo_acreate(void *data) { zkrb_zoo_acreate_args_t *a = (zkrb_zoo_acreate_args_t *)data; a->rc = zoo_acreate(a->zh, a->path, a->value, a->valuelen, a->acl, a->flags, a->completion, a->data); return Qnil; } static int zkrb_call_zoo_acreate(zhandle_t *zh, const char *path, const char *value, int valuelen, const struct ACL_vector *acl, int flags, string_completion_t completion, const void *data) { zkrb_zoo_acreate_args_t args = { .rc = ZKRB_FAIL, .zh = zh, .path = path, .value = value, .valuelen = valuelen, .acl = acl, .flags = flags, .completion = completion, .data = data }; zkrb_thread_blocking_region(zkrb_gvl_zoo_acreate, (void *)&args); return args.rc; }
/^ZOOAPI int (zoo_[^(]+)\(([^)]+)\);$/m
- THIS_DIR =
File.('..', __FILE__)
- ZKRB_WRAPPER_H_PATH =
File.('../zkrb_wrapper.h', __FILE__)
- ZKRB_WRAPPER_C_PATH =
File.('../zkrb_wrapper.c', __FILE__)
Instance Method Summary collapse
- #help! ⇒ Object
- #main ⇒ Object
- #render_c_file(code) ⇒ Object
- #render_header_file(code) ⇒ Object
- #safe_sh(cmd) ⇒ Object
Instance Method Details
#help! ⇒ Object
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# File 'ext/generate_gvl_code.rb', line 290 def help! $stderr.puts "usage: #{File.basename(__FILE__)} {all|headers|code}" exit 1 end |
#main ⇒ Object
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# File 'ext/generate_gvl_code.rb', line 295 def main help! if ARGV.empty? opts = [] zookeeper_h_path = Dir[File.join(THIS_DIR, "**/zookeeper.h")].first raise "Could not locate zookeeper.h!" unless zookeeper_h_path text = File.read(zookeeper_h_path) code = GeneratedCode.from_zookeeper_h(text) cmd = ARGV.first help! unless %w[headers all code].include?(cmd) if %w[headers all].include?(cmd) $stderr.puts "writing #{ZKRB_WRAPPER_H_PATH}" File.open(ZKRB_WRAPPER_H_PATH, 'w') { |fp| fp.write(render_header_file(code)) } end if %w[code all].include?(cmd) $stderr.puts "writing #{ZKRB_WRAPPER_C_PATH}" File.open(ZKRB_WRAPPER_C_PATH, 'w') { |fp| fp.write(render_c_file(code)) } end end |
#render_c_file(code) ⇒ Object
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# File 'ext/generate_gvl_code.rb', line 261 def render_c_file(code) StringIO.new('zkrb_wrapper.c', 'w').tap do |fp| fp.puts <<-EOS /* Autogenerated boilerplate wrappers around zoo_* function calls necessary for using rb_thread_blocking_region to release the GIL when calling native code. generated by ext/#{File.basename(__FILE__)} */ #include "ruby.h" #include "zkrb_wrapper.h" #include <errno.h> #include <stdio.h> #include <stdlib.h> EOS code.wrapper_fns.zip(code.calling_fns) do |wrap_fn, call_fn| fp.puts "#{wrap_fn.body}\n\n" fp.puts "#{call_fn.body}\n\n" end end.string end |
#render_header_file(code) ⇒ Object
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# File 'ext/generate_gvl_code.rb', line 224 def render_header_file(code) StringIO.new('zkrb_wrapper.h', 'w').tap do |fp| fp.puts <<-EOS #ifndef ZKRB_WRAPPER_H #define ZKRB_WRAPPER_H #if 0 AUTOGENERATED BY #{File.basename(__FILE__)} #endif #include "ruby.h" #include "c-client-src/zookeeper.h" #include "zkrb_wrapper_compat.h" #include "dbg.h" #define ZKRB_FAIL -1 EOS code.structs.each do |struct| fp.puts(struct.body) fp.puts end code.calling_fns.each do |cf| fp.puts "#{cf.fn_signature};" end fp.puts <<-EOS #endif /* ZKRB_WRAPPER_H */ EOS end.string end |
#safe_sh(cmd) ⇒ Object
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# File 'ext/extconf.rb', line 45 def safe_sh(cmd) puts cmd system(cmd) unless $?.exited? and $?.success? raise "command failed! #{cmd}" end end |