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.rebar3 | ||
_* | ||
.eunit | ||
*.o | ||
*.beam | ||
*.plt | ||
*.swp | ||
*.swo | ||
.erlang.cookie | ||
ebin | ||
log | ||
erl_crash.dump | ||
.rebar | ||
logs | ||
_build |
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The MIT License (MIT) | ||
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Copyright (c) 2016, Ilya Khaprov <dead.trickster@gmail.com>. | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is | ||
furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. |
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prometheus_process_collector | ||
===== | ||
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An OTP library | ||
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Build | ||
----- | ||
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$ rebar3 compile |
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# Based on c_src.mk from erlang.mk by Loic Hoguin <essen@ninenines.eu> | ||
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CURDIR := $(shell pwd) | ||
BASEDIR := $(abspath $(CURDIR)/..) | ||
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PROJECT ?= $(notdir $(BASEDIR)) | ||
PROJECT := $(strip $(PROJECT)) | ||
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ERTS_INCLUDE_DIR ?= $(shell erl -noshell -s init stop -eval "io:format(\"~s/erts-~s/include/\", [code:root_dir(), erlang:system_info(version)]).") | ||
ERL_INTERFACE_INCLUDE_DIR ?= $(shell erl -noshell -s init stop -eval "io:format(\"~s\", [code:lib_dir(erl_interface, include)]).") | ||
ERL_INTERFACE_LIB_DIR ?= $(shell erl -noshell -s init stop -eval "io:format(\"~s\", [code:lib_dir(erl_interface, lib)]).") | ||
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C_SRC_DIR = $(CURDIR) | ||
C_SRC_OUTPUT ?= $(CURDIR)/../priv/$(PROJECT).so | ||
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# System type and C compiler/flags. | ||
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UNAME_SYS := $(shell uname -s) | ||
ifeq ($(UNAME_SYS), Darwin) | ||
CC ?= cc | ||
CFLAGS ?= -O3 -std=c99 -arch x86_64 -finline-functions -Wall -Wmissing-prototypes | ||
CXXFLAGS ?= -O3 -arch x86_64 -finline-functions -Wall | ||
LDFLAGS ?= -arch x86_64 -flat_namespace -undefined suppress | ||
else ifeq ($(UNAME_SYS), FreeBSD) | ||
CC ?= cc | ||
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes | ||
CXXFLAGS ?= -O3 -finline-functions -Wall | ||
else ifeq ($(UNAME_SYS), Linux) | ||
CC ?= gcc | ||
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes | ||
CXXFLAGS ?= -O3 -finline-functions -Wall | ||
endif | ||
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CFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) | ||
CXXFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR) | ||
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LDLIBS += -L $(ERL_INTERFACE_LIB_DIR) -lerl_interface -lei | ||
LDFLAGS += -shared | ||
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# Verbosity. | ||
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c_verbose_0 = @echo " C " $(?F); | ||
c_verbose = $(c_verbose_$(V)) | ||
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cpp_verbose_0 = @echo " CPP " $(?F); | ||
cpp_verbose = $(cpp_verbose_$(V)) | ||
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link_verbose_0 = @echo " LD " $(@F); | ||
link_verbose = $(link_verbose_$(V)) | ||
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SOURCES := $(shell find $(C_SRC_DIR) -type f \( -name "*.c" -o -name "*.C" -o -name "*.cc" -o -name "*.cpp" \)) | ||
OBJECTS = $(addsuffix .o, $(basename $(SOURCES))) | ||
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COMPILE_C = $(c_verbose) $(CC) $(CFLAGS) $(CPPFLAGS) -c | ||
COMPILE_CPP = $(cpp_verbose) $(CXX) $(CXXFLAGS) $(CPPFLAGS) -c | ||
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$(C_SRC_OUTPUT): $(OBJECTS) | ||
@mkdir -p $(BASEDIR)/priv/ | ||
$(link_verbose) $(CC) $(OBJECTS) $(LDFLAGS) $(LDLIBS) -o $(C_SRC_OUTPUT) | ||
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%.o: %.c | ||
$(COMPILE_C) $(OUTPUT_OPTION) $< | ||
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%.o: %.cc | ||
$(COMPILE_CPP) $(OUTPUT_OPTION) $< | ||
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%.o: %.C | ||
$(COMPILE_CPP) $(OUTPUT_OPTION) $< | ||
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%.o: %.cpp | ||
$(COMPILE_CPP) $(OUTPUT_OPTION) $< | ||
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clean: | ||
@rm -f $(C_SRC_OUTPUT) $(OBJECTS) |
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#define _GNU_SOURCE | ||
#include "erl_nif.h" | ||
#include <dirent.h> | ||
#include <unistd.h> | ||
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ERL_NIF_TERM mk_error(ErlNifEnv* env, const char* mesg); | ||
ERL_NIF_TERM mk_atom(ErlNifEnv* env, const char* atom); | ||
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#define MAXBUFLEN 1024 | ||
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ERL_NIF_TERM | ||
mk_atom(ErlNifEnv* env, const char* atom) | ||
{ | ||
ERL_NIF_TERM ret; | ||
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if(!enif_make_existing_atom(env, atom, &ret, ERL_NIF_LATIN1)) | ||
{ | ||
return enif_make_atom(env, atom); | ||
} | ||
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return ret; | ||
} | ||
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ERL_NIF_TERM | ||
mk_error(ErlNifEnv* env, const char* mesg) | ||
{ | ||
return enif_make_tuple2(env, mk_atom(env, "error"), mk_atom(env, mesg)); | ||
} | ||
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static ERL_NIF_TERM | ||
sc_clk_tck(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) | ||
{ | ||
if(argc != 0) | ||
{ | ||
return enif_make_badarg(env); | ||
} | ||
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long result = sysconf(_SC_CLK_TCK); | ||
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if(result == -1 || result == 0) | ||
{ | ||
return mk_error(env, "sysconf_fail"); | ||
} | ||
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return enif_make_ulong(env, result); | ||
} | ||
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static ERL_NIF_TERM | ||
sc_pagesize(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) | ||
{ | ||
if(argc != 0) | ||
{ | ||
return enif_make_badarg(env); | ||
} | ||
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long result = sysconf(_SC_PAGESIZE); | ||
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if(result == -1 || result == 0) | ||
{ | ||
return mk_error(env, "sysconf_fail"); | ||
} | ||
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return enif_make_ulong(env, result); | ||
} | ||
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static ERL_NIF_TERM | ||
files_count(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) | ||
{ | ||
long file_count = 0; | ||
DIR* dirp; | ||
struct dirent* entry; | ||
char path[MAXBUFLEN]; | ||
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enif_get_string(env, argv[0], path, 1024, ERL_NIF_LATIN1); | ||
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if(argc != 1) | ||
{ | ||
return enif_make_badarg(env); | ||
} | ||
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dirp = opendir(path); | ||
if (dirp == NULL) { | ||
return mk_error(env, "opendir_fail"); | ||
} | ||
while ((entry = readdir(dirp)) != NULL) { | ||
if (entry->d_type == DT_REG) { | ||
file_count++; | ||
} | ||
} | ||
closedir(dirp); | ||
return enif_make_ulong(env, file_count); | ||
} | ||
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static ErlNifFunc nif_funcs[] = { | ||
{"sc_clk_tck", 0, sc_clk_tck}, | ||
{"sc_pagesize", 0, sc_pagesize}, | ||
{"files_count", 1, files_count} | ||
}; | ||
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ERL_NIF_INIT(prometheus_process_collector, nif_funcs, NULL, NULL, NULL, NULL); |
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{erl_opts, [debug_info]}. | ||
{deps, [{prometheus, "1.6.0"}]}. | ||
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{pre_hooks, | ||
[{"linux", compile, "make -C c_src"}]}. | ||
{post_hooks, | ||
[{"linux", clean, "make -C c_src clean"}]}. | ||
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{plugins, [rebar3_hex]}. |
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[{<<"prometheus">>,{pkg,<<"prometheus">>,<<"1.6.0">>},0}]. |
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{application, prometheus_process_collector, | ||
[{description, "Prometheus.io process collector"}, | ||
{vsn, "0.1.0"}, | ||
{registered, []}, | ||
{applications, | ||
[kernel, | ||
stdlib | ||
]}, | ||
{env,[]}, | ||
{modules, []}, | ||
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{maintainers, ["Ilya Khaprov"]}, | ||
{licenses, ["MIT"]}, | ||
{links, [{"Github", "https://github.com/deadtrickster/prometheus_process_collector.erl"}, | ||
{"Prometheus.io Client", "https://github.com/deadtrickster/prometheus.erl"}]} | ||
]}. |
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