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‎.gitignore

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/stage
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/.sconsign.dblite

‎LICENSE

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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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‎SConstruct

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import os
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DIRECTORIES = [
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'src',
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'components/cslp-rotatable' ]
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def target_architectures():
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archs = os.getenv('FSARCHS', None)
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if archs:
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return archs.split(',')
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uname_os, _, _, _, uname_cpu = os.uname()
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if uname_os == 'Linux':
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if uname_cpu == 'x86_64':
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return ['linux64']
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assert uname_cpu == 'i686'
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return ['linux32']
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assert uname_os == 'Darwin'
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return ['darwin']
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TARGET_DEFINES = {
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'linux32': ['_FILE_OFFSET_BITS=64'],
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'linux64': [],
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'darwin': []
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}
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TARGET_FLAGS = {
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'linux32': '-m32 ',
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'linux64': '',
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'darwin': ''
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}
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def libconfig_builder(env):
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env.Install('.', '#fscomp-libconfig.json')
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def libconfig_parser():
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return '$ARCHBUILDDIR/components/cslp-rotatable/.fscomp/libconfig'
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def pkgconfig_builder(env):
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pkgconfig = env.Substfile(
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'lib/pkgconfig/rotatable.pc',
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'#rotatable.pc.in',
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SUBST_DICT = {
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'@prefix@': '$PREFIX'
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}
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)
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env.Alias(
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'install',
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env.Install(os.path.join(env['PREFIX'], 'lib/pkgconfig'), pkgconfig),
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)
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def pkgconfig_parser(prefix):
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cmd = (
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'PKG_CONFIG_PATH=%s/lib/pkgconfig' % (prefix),
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'pkg-config',
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'--static',
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'--cflags',
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'--libs',
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'fsdyn',
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)
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return ' '.join(cmd)
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def construct():
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ccflags = '-g -O2 -Wall -Wextra -Werror ' + os.getenv('FSCCFLAGS', '')
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linkflags = os.getenv('FSLINKFLAGS', '')
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ar_override = os.getenv('FSAR', os.getenv('FSBTAR', None))
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cc_override = os.getenv('FSCC', os.getenv('FSBTCC', None))
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ranlib_override = os.getenv('FSRANLIB', os.getenv('FSBTRANLIB', None))
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prefix = ARGUMENTS.get('prefix', '/usr/local')
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if ARGUMENTS.get('fscomp', 0):
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config_builder = libconfig_builder
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config_parser = libconfig_parser()
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else:
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config_builder = pkgconfig_builder
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config_parser = pkgconfig_parser(prefix)
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for target_arch in target_architectures():
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target_ccflags = TARGET_FLAGS[target_arch] + ccflags
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target_cppdefines = TARGET_DEFINES[target_arch]
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target_linkflags = TARGET_FLAGS[target_arch] + linkflags
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build_dir = os.path.join('stage',
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target_arch,
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ARGUMENTS.get('builddir', 'build'))
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for directory in DIRECTORIES:
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env = Environment(ARCH=target_arch,
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CCFLAGS=target_ccflags,
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CPPDEFINES=target_cppdefines,
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LINKFLAGS=target_linkflags,
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CONFIG_BUILDER=config_builder,
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CONFIG_PARSER=config_parser,
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PREFIX=prefix,
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tools=['default', 'textfile'])
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env['ARCHBUILDDIR'] = env.Dir('#stage/$ARCH/build').abspath
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if ar_override:
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env['AR'] = ar_override
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if cc_override:
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env['CC'] = cc_override
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if ranlib_override:
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env['RANLIB'] = ranlib_override
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if target_arch == "darwin":
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env.AppendENVPath("PATH", "/opt/local/bin")
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SConscript(dirs=directory,
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exports=['env'],
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duplicate=False,
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variant_dir=os.path.join(build_dir, directory))
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Clean('.', build_dir)
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if __name__ == 'SCons.Script':
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construct()

‎components/cslp-rotatable/SConscript

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Import('env')
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import os
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include = env.Install('include/rotatable', ['#include/rotatable.h'])
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lib = env.Install('lib', ['../../src/librotatable.a'])
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env.Alias(
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'install',
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env.Install(os.path.join(env['PREFIX'], 'include/rotatable'), include),
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)
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env.Alias('install', env.Install(os.path.join(env['PREFIX'], 'lib'), lib))
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env['CONFIG_BUILDER'](env)

‎fscomp-libconfig.json

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{
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"CPPPATH": "include",
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"LIBPATH": "lib",
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"LIBS": "rotatable"
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}

‎include/rotatable.h

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#include <stdio.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <time.h>
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/* Dynamic rotation parameters */
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typedef struct {
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uid_t uid;
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gid_t gid;
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int max_files;
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int max_seconds;
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int64_t max_bytes;
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} rotatable_params_t;
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typedef struct rotatable rotatable_t;
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rotatable_t *make_rotatable(const char *pathname_prefix,
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const char *pathname_suffix,
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ssize_t rotate_size,
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const rotatable_params_t *params);
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void destroy_rotatable(rotatable_t *rot);
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FILE *rotatable_file(rotatable_t *rot);
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bool rotatable_rename(rotatable_t *rot, const struct tm *tm, int usec);
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typedef enum {
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ROTATION_FAIL,
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ROTATION_OK,
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ROTATION_ROTATED
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} rotation_result_t;
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rotation_result_t rotatable_rotate_maybe(rotatable_t *rot,
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const struct tm *tm, int usec,
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bool force_reopen);
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/* Call rotatable_invalidate() if there is a chance you may have
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* closed the underlying file descriptor of the rotatable object. That
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* could happen after you categorically close all open file descriptor
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* after a call to fork(), for example. */
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void rotatable_invalidate(rotatable_t *rot);

‎rotatable.pc.in

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Name: rotatable
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Description:
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Version: 1.0
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Requires:
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Requires.private: fsdyn
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Cflags: -I@prefix@/include
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Libs: -L@prefix@/lib -lrotatable
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Libs.private:

‎scripts/run-unittests.sh

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#!/bin/bash
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# all's well that ends well
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exit 0

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