package/hotplug2/patches/110-static_worker.patch

   1 --- a/Makefile
   2 +++ b/Makefile
   3 @@ -4,7 +4,24 @@ SOFTWARE=hotplug2
   4  VERSION=1.0-alpha
   5
   6  BINS=hotplug2 hotplug2-modwrap
   7 -SUBDIRS=parser rules workers
   8 +SUBDIRS=parser rules
   9 +
  10 +hotplug2-objs := \
  11 +       hotplug2.o netlink.o seqnum.o settings.o uevent.o xmemutils.o \
  12 +       workers/loader.o parser/parser.o parser/buffer.o parser/token.o \
  13 +       parser/token_queue.o parser/lexer.o rules/ruleset.o rules/rule.o \
  14 +       rules/condition.o rules/expression.o rules/execution.o \
  15 +       rules/command.o
  16 +
  17 +ifdef STATIC_WORKER
  18 +  ifeq ($(wildcard workers/worker_$(STATIC_WORKER).c),)
  19 +    $(error Worker source worker/worker_$(STATIC_WORKER).c not found)
  20 +  endif
  21 +  hotplug2-objs += action.o workers/worker_$(STATIC_WORKER).o
  22 +else
  23 +  SUBDIRS += workers
  24 +endif
  25 +
  26  DESTDIR=
  27
  28
  29 @@ -13,13 +30,16 @@ all: $(BINS)
  30  install:
  31         $(INSTALL_BIN) $(BINS) $(DESTDIR)/sbin/
  32
  33 -
  34 -hotplug2: hotplug2.o netlink.o seqnum.o settings.o uevent.o xmemutils.o \
  35 -          workers/loader.o parser/parser.o parser/buffer.o parser/token.o \
  36 -          parser/token_queue.o parser/lexer.o rules/ruleset.o rules/rule.o \
  37 -          rules/condition.o rules/expression.o rules/execution.o \
  38 -          rules/command.o
  39 +hotplug2: $(hotplug2-objs)
  40
  41  coldplug2: coldplug2.o
  42
  43  include common.mak
  44 +
  45 +ifdef STATIC_WORKER
  46 +  CFLAGS += -DSTATIC_WORKER=1
  47 +else
  48 +  CFLAGS += $(FPIC)
  49 +  LDFLAGS += -ldl
  50 +endif
  51 +
  52 --- a/common.mak
  53 +++ b/common.mak
  54 @@ -1,7 +1,10 @@
  55  # vim:set sw=8 nosta:
  56
  57 -CFLAGS=-Os -Wall -g -fPIC
  58 -LDFLAGS=-g -ldl
  59 +COPTS=-Os -Wall -g
  60 +LDFLAGS=-g
  61 +
  62 +CFLAGS=$(COPTS)
  63 +FPIC=-fPIC
  64
  65  INSTALL=install -c -m 644
  66  INSTALL_BIN=install -c -m 755
  67 --- a/workers/loader.c
  68 +++ b/workers/loader.c
  69 @@ -1,5 +1,23 @@
  70  #include "loader.h"
  71
  72 +#ifdef STATIC_WORKER
  73 +
  74 +extern struct worker_module_t worker_module;
  75 +static struct loader_ctx_t static_ctx = {
  76 +       .module = &worker_module
  77 +};
  78 +
  79 +struct loader_ctx_t *worker_load(const char *name)
  80 +{
  81 +       return &static_ctx;
  82 +}
  83 +
  84 +void worker_free(struct loader_ctx_t *ctx)
  85 +{
  86 +}
  87 +
  88 +#else
  89 +
  90  struct loader_ctx_t *worker_load(const char *name) {
  91         struct loader_ctx_t *ctx;
  92
  93 @@ -12,7 +30,7 @@ struct loader_ctx_t *worker_load(const c
  94                 return NULL;
  95         }
  96
  97 -       ctx->module = dlsym(ctx->dl_handle, "module");
  98 +       ctx->module = dlsym(ctx->dl_handle, "worker_module");
  99         if (ctx->module == NULL) {
 100                 fprintf(stderr, "Loader error: %s\n", dlerror());
 101                 worker_free(ctx);
 102 @@ -31,3 +49,5 @@ void worker_free(struct loader_ctx_t *ct
 103
 104         free(ctx);
 105  }
 106 +
 107 +#endif
 108 --- a/hotplug2.c
 109 +++ b/hotplug2.c
 110 @@ -261,17 +261,21 @@ int main(int argc, char *argv[]) {
 111         }
 112
 113         /* Load the worker. */
 114 +#ifndef STATIC_WORKER
 115         if (settings->worker_name == NULL) {
 116                 fprintf(stderr, "Missing worker name.\n");
 117                 settings_clear(settings);
 118                 exit(1);
 119         }
 120 +#endif
 121         settings->worker = worker_load(settings->worker_name);
 122 +#ifndef STATIC_WORKER
 123         if (settings->worker == NULL) {
 124                 fprintf(stderr, "Unable to load worker: %s\n", settings->worker_name);
 125                 settings_clear(settings);
 126                 exit(1);
 127         }
 128 +#endif
 129
 130         /* Prepare a netlink connection to the kernel. */
 131         settings->netlink_socket = netlink_init();
 132 --- a/workers/worker_example.c
 133 +++ b/workers/worker_example.c
 134 @@ -62,7 +62,7 @@ static int worker_example_process(void *
 135         return 0;
 136  }
 137
 138 -struct worker_module_t module = {
 139 +struct worker_module_t worker_module = {
 140         "Hotplug2 example module",
 141         worker_example_init,
 142         worker_example_deinit,
 143 --- a/workers/worker_fork.c
 144 +++ b/workers/worker_fork.c
 145 @@ -443,7 +443,7 @@ static int worker_fork_process(void *in_
 146         return 0;
 147  }
 148
 149 -struct worker_module_t module = {
 150 +struct worker_module_t worker_module = {
 151         "Hotplug2 forking module",
 152         worker_fork_init,
 153         worker_fork_deinit,
 154 --- a/workers/worker_single.c
 155 +++ b/workers/worker_single.c
 156 @@ -18,7 +18,7 @@ static int worker_single_process(void *s
 157         return 0;
 158  }
 159
 160 -struct worker_module_t module = {
 161 +struct worker_module_t worker_module = {
 162         "Hotplug2 single process module",
 163         worker_single_init,
 164         worker_single_deinit,