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-rw-r--r--mmap.c949
1 files changed, 682 insertions, 267 deletions
diff --git a/mmap.c b/mmap.c
index 712b5dd..d77603f 100644
--- a/mmap.c
+++ b/mmap.c
@@ -5,6 +5,13 @@
#include <sys/stat.h>
#include <unistd.h>
#include <sys/mman.h>
+
+#if HAVE_SEMCTL && HAVE_SHMCTL
+#include <sys/shm.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#endif
+
#include <rubyio.h>
#include <intern.h>
#include <re.h>
@@ -70,29 +77,22 @@ typedef struct {
MMAP_RETTYPE addr;
int smode, pmode, vscope;
int advice, flag;
+ VALUE key;
+ int semid, shmid;
size_t len, real, incr;
off_t offset;
- char *path;
+ char *path, *template;
} mm_mmap;
-static void
-mm_free(t_mm)
- mm_mmap *t_mm;
-{
- if (t_mm->path) {
- munmap(t_mm->addr, t_mm->len);
- if (t_mm->path != (char *)-1) {
- if (t_mm->real < t_mm->len && t_mm->vscope != MAP_PRIVATE &&
- truncate(t_mm->path, t_mm->real) == -1) {
- free(t_mm->path);
- free(t_mm);
- rb_raise(rb_eTypeError, "truncate");
- }
- free(t_mm->path);
- }
- }
- free(t_mm);
-}
+typedef struct {
+ int count;
+ mm_mmap *t;
+} mm_ipc;
+
+typedef struct {
+ VALUE obj, *argv;
+ int flag, id, argc;
+} mm_bang;
#define MM_MODIFY 1
#define MM_ORIGIN 2
@@ -103,33 +103,194 @@ mm_free(t_mm)
#define MM_FIXED (1<<1)
#define MM_ANON (1<<2)
#define MM_LOCK (1<<3)
+#define MM_IPC (1<<4)
+#define MM_TMP (1<<5)
+
+#if HAVE_SEMCTL && HAVE_SHMCTL
+static char template[1024];
+
+union semun
+{
+ int val;
+ struct semid_ds *buf;
+ unsigned short int *array;
+ struct seminfo *__buf;
+};
+#endif
+
+static void
+mm_free(i_mm)
+ mm_ipc *i_mm;
+{
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ if (i_mm->t->flag & MM_IPC) {
+ struct shmid_ds buf;
+
+ if (shmctl(i_mm->t->shmid, IPC_STAT, &buf) != -1) {
+ if (buf.shm_nattch == 1 && (i_mm->t->flag & MM_TMP)) {
+ semctl(i_mm->t->semid, 0, IPC_RMID);
+ if (i_mm->t->template) {
+ unlink(i_mm->t->template);
+ free(i_mm->t->template);
+ }
+ }
+ }
+ shmdt(i_mm->t);
+ }
+ else {
+ free(i_mm->t);
+ }
+#endif
+ if (i_mm->t->path) {
+ munmap(i_mm->t->addr, i_mm->t->len);
+ if (i_mm->t->path != (char *)-1) {
+ if (i_mm->t->real < i_mm->t->len && i_mm->t->vscope != MAP_PRIVATE &&
+ truncate(i_mm->t->path, i_mm->t->real) == -1) {
+ free(i_mm->t->path);
+ free(i_mm);
+ rb_raise(rb_eTypeError, "truncate");
+ }
+ free(i_mm->t->path);
+ }
+ }
+ free(i_mm);
+}
+
+static void
+mm_lock(i_mm, wait_lock)
+ mm_ipc *i_mm;
+ int wait_lock;
+{
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ struct sembuf sem_op;
+
+ if (i_mm->t->flag & MM_IPC) {
+ i_mm->count++;
+ if (i_mm->count == 1) {
+ retry:
+ sem_op.sem_num = 0;
+ sem_op.sem_op = -1;
+ sem_op.sem_flg = IPC_NOWAIT;
+ if (semop(i_mm->t->semid, &sem_op, 1) == -1) {
+ if (errno == EAGAIN) {
+ if (!wait_lock) {
+ rb_raise(rb_const_get(rb_mErrno, rb_intern("EAGAIN")), "EAGAIN");
+ }
+ rb_thread_sleep(1);
+ goto retry;
+ }
+ rb_sys_fail("semop()");
+ }
+ }
+ }
+#endif
+}
+
+static void
+mm_unlock(i_mm)
+ mm_ipc *i_mm;
+{
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ struct sembuf sem_op;
+
+ if (i_mm->t->flag & MM_IPC) {
+ i_mm->count--;
+ if (!i_mm->count) {
+ retry:
+ sem_op.sem_num = 0;
+ sem_op.sem_op = 1;
+ sem_op.sem_flg = IPC_NOWAIT;
+ if (semop(i_mm->t->semid, &sem_op, 1) == -1) {
+ if (errno == EAGAIN) {
+ rb_thread_sleep(1);
+ goto retry;
+ }
+ rb_sys_fail("semop()");
+ }
+ }
+ }
+#endif
+}
+
+#define GetMmap(obj, i_mm, t_modify) \
+ Data_Get_Struct(obj, mm_ipc, i_mm); \
+ if (!i_mm->t->path) { \
+ rb_raise(rb_eIOError, "unmapped file"); \
+ } \
+ if ((t_modify & MM_MODIFY) && (i_mm->t->flag & MM_FROZEN)) { \
+ rb_error_frozen("mmap"); \
+ }
+
+static VALUE
+mm_vunlock(obj)
+ VALUE obj;
+{
+ mm_ipc *i_mm;
+
+ GetMmap(obj, i_mm, 0);
+ mm_unlock(i_mm);
+ return Qnil;
+}
-#define GetMmap(obj, t_mm, t_modify) \
- Data_Get_Struct(obj, mm_mmap, t_mm); \
- if (!t_mm->path) { \
- rb_raise(rb_eIOError, "unmapped file"); \
- } \
- if ((t_modify & MM_MODIFY) && (t_mm->flag & MM_FROZEN)) { \
- rb_error_frozen("mmap"); \
+static VALUE
+mm_semlock(argc, argv, obj)
+ int argc;
+ VALUE *argv, obj;
+{
+ mm_ipc *i_mm;
+
+ GetMmap(obj, i_mm, 0);
+ if (!(i_mm->t->flag & MM_IPC)) {
+ rb_warning("useless use of #semlock");
+ rb_yield(obj);
}
+ else {
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ VALUE a;
+ int wait_lock = Qtrue;
+
+ if (rb_scan_args(argc, argv, "01", &a)) {
+ wait_lock = RTEST(a);
+ }
+ mm_lock(i_mm, wait_lock);
+ rb_ensure(rb_yield, obj, mm_vunlock, obj);
+#endif
+ }
+ return Qnil;
+}
+
+static VALUE
+mm_ipc_key(obj)
+ VALUE obj;
+{
+ mm_ipc *i_mm;
+
+ GetMmap(obj, i_mm, 0);
+ if (i_mm->t->flag & MM_IPC) {
+ return INT2NUM(i_mm->t->key);
+ }
+ return INT2NUM(-1);
+}
static VALUE
mm_unmap(obj)
VALUE obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(obj, t_mm, 0);
- if (t_mm->path) {
- munmap(t_mm->addr, t_mm->len);
- if (t_mm->path != (char *)-1) {
- if (t_mm->real < t_mm->len && t_mm->vscope != MAP_PRIVATE &&
- truncate(t_mm->path, t_mm->real) == -1) {
+ GetMmap(obj, i_mm, 0);
+ if (i_mm->t->path) {
+ mm_lock(i_mm, Qtrue);
+ munmap(i_mm->t->addr, i_mm->t->len);
+ if (i_mm->t->path != (char *)-1) {
+ if (i_mm->t->real < i_mm->t->len && i_mm->t->vscope != MAP_PRIVATE &&
+ truncate(i_mm->t->path, i_mm->t->real) == -1) {
rb_raise(rb_eTypeError, "truncate");
}
- free(t_mm->path);
+ free(i_mm->t->path);
}
- t_mm->path = '\0';
+ i_mm->t->path = '\0';
+ mm_unlock(i_mm);
}
return Qnil;
}
@@ -138,10 +299,10 @@ static VALUE
mm_freeze(obj)
VALUE obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
rb_obj_freeze(obj);
- GetMmap(obj, t_mm, 0);
- t_mm->flag |= MM_FROZEN;
+ GetMmap(obj, i_mm, 0);
+ i_mm->t->flag |= MM_FROZEN;
return obj;
}
@@ -150,12 +311,12 @@ mm_str(obj, modify)
VALUE obj;
int modify;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
VALUE ret = Qnil;
- GetMmap(obj, t_mm, modify & ~MM_ORIGIN);
+ GetMmap(obj, i_mm, modify & ~MM_ORIGIN);
if (modify & MM_MODIFY) {
- if (t_mm->flag & MM_FROZEN) rb_error_frozen("mmap");
+ if (i_mm->t->flag & MM_FROZEN) rb_error_frozen("mmap");
if (!OBJ_TAINTED(ret) && rb_safe_level() >= 4)
rb_raise(rb_eSecurityError, "Insecure: can't modify mmap");
}
@@ -173,8 +334,8 @@ mm_str(obj, modify)
}
free(RSTRING(ret)->ptr);
#endif
- RSTRING(ret)->ptr = t_mm->addr;
- RSTRING(ret)->len = t_mm->real;
+ RSTRING(ret)->ptr = i_mm->t->addr;
+ RSTRING(ret)->len = i_mm->t->real;
if (modify & MM_ORIGIN) {
#if HAVE_RB_DEFINE_ALLOC_FUNC
RSTRING(ret)->aux.shared = ret;
@@ -183,7 +344,7 @@ mm_str(obj, modify)
RSTRING(ret)->orig = ret;
#endif
}
- if (t_mm->flag & MM_FROZEN) {
+ if (i_mm->t->flag & MM_FROZEN) {
ret = rb_obj_freeze(ret);
}
return ret;
@@ -198,66 +359,96 @@ mm_to_str(obj)
extern char *ruby_strdup();
-static void
-mm_expandf(t_mm, len)
- mm_mmap *t_mm;
+typedef struct {
+ mm_ipc *i_mm;
size_t len;
+} mm_st;
+
+static VALUE
+mm_i_expand(st_mm)
+ mm_st *st_mm;
{
int fd;
+ mm_ipc *i_mm = st_mm->i_mm;
+ size_t len = st_mm->len;
- if (t_mm->vscope == MAP_PRIVATE) {
- rb_raise(rb_eTypeError, "expand for a private map");
- }
- if (t_mm->flag & MM_FIXED) {
- rb_raise(rb_eTypeError, "expand for a fixed map");
- }
- if (!t_mm->path || t_mm->path == (char *)-1) {
- rb_raise(rb_eTypeError, "expand for an anonymous map");
- }
- if (munmap(t_mm->addr, t_mm->len)) {
+ if (munmap(i_mm->t->addr, i_mm->t->len)) {
rb_raise(rb_eArgError, "munmap failed");
}
- if ((fd = open(t_mm->path, t_mm->smode)) == -1) {
- rb_raise(rb_eArgError, "Can't open %s", t_mm->path);
+ if ((fd = open(i_mm->t->path, i_mm->t->smode)) == -1) {
+ rb_raise(rb_eArgError, "Can't open %s", i_mm->t->path);
}
- if (len > t_mm->len) {
- if (lseek(fd, len - t_mm->len - 1, SEEK_END) == -1) {
- rb_raise(rb_eIOError, "Can't lseek %d", len - t_mm->len - 1);
+ if (len > i_mm->t->len) {
+ if (lseek(fd, len - i_mm->t->len - 1, SEEK_END) == -1) {
+ rb_raise(rb_eIOError, "Can't lseek %d", len - i_mm->t->len - 1);
}
if (write(fd, "\000", 1) != 1) {
- rb_raise(rb_eIOError, "Can't extend %s", t_mm->path);
+ rb_raise(rb_eIOError, "Can't extend %s", i_mm->t->path);
}
}
- else if (len < t_mm->len && truncate(t_mm->path, len) == -1) {
- rb_raise(rb_eIOError, "Can't truncate %s", t_mm->path);
+ else if (len < i_mm->t->len && truncate(i_mm->t->path, len) == -1) {
+ rb_raise(rb_eIOError, "Can't truncate %s", i_mm->t->path);
}
- t_mm->addr = mmap(0, len, t_mm->pmode, t_mm->vscope, fd, t_mm->offset);
+ i_mm->t->addr = mmap(0, len, i_mm->t->pmode, i_mm->t->vscope, fd, i_mm->t->offset);
close(fd);
- if (t_mm->addr == MAP_FAILED) {
+ if (i_mm->t->addr == MAP_FAILED) {
rb_raise(rb_eArgError, "mmap failed");
}
#ifdef MADV_NORMAL
- if (t_mm->advice && madvise(t_mm->addr, len, t_mm->advice) == -1) {
+ if (i_mm->t->advice && madvise(i_mm->t->addr, len, i_mm->t->advice) == -1) {
rb_raise(rb_eArgError, "madvise(%d)", errno);
}
#endif
- if ((t_mm->flag & MM_LOCK) && mlock(t_mm->addr, len) == -1) {
+ if ((i_mm->t->flag & MM_LOCK) && mlock(i_mm->t->addr, len) == -1) {
rb_raise(rb_eArgError, "mlock(%d)", errno);
}
- t_mm->len = len;
+ i_mm->t->len = len;
+ return Qnil;
}
static void
-mm_realloc(t_mm, len)
- mm_mmap *t_mm;
+mm_expandf(i_mm, len)
+ mm_ipc *i_mm;
size_t len;
{
- if (t_mm->flag & MM_FROZEN) rb_error_frozen("mmap");
- if (len > t_mm->len) {
- if ((len - t_mm->len) < t_mm->incr) {
- len = t_mm->len + t_mm->incr;
+ int status;
+ mm_st st_mm;
+
+ if (i_mm->t->vscope == MAP_PRIVATE) {
+ rb_raise(rb_eTypeError, "expand for a private map");
+ }
+ if (i_mm->t->flag & MM_FIXED) {
+ rb_raise(rb_eTypeError, "expand for a fixed map");
+ }
+ if (!i_mm->t->path || i_mm->t->path == (char *)-1) {
+ rb_raise(rb_eTypeError, "expand for an anonymous map");
+ }
+ st_mm.i_mm = i_mm;
+ st_mm.len = len;
+ if (i_mm->t->flag & MM_IPC) {
+ mm_lock(i_mm, Qtrue);
+ rb_protect(mm_i_expand, (VALUE)&st_mm, &status);
+ mm_unlock(i_mm);
+ if (status) {
+ rb_jump_tag(status);
}
- mm_expandf(t_mm, len);
+ }
+ else {
+ mm_i_expand(&st_mm);
+ }
+}
+
+static void
+mm_realloc(i_mm, len)
+ mm_ipc *i_mm;
+ size_t len;
+{
+ if (i_mm->t->flag & MM_FROZEN) rb_error_frozen("mmap");
+ if (len > i_mm->t->len) {
+ if ((len - i_mm->t->len) < i_mm->t->incr) {
+ len = i_mm->t->len + i_mm->t->incr;
+ }
+ mm_expandf(i_mm, len);
}
}
@@ -265,57 +456,105 @@ static VALUE
mm_extend(obj, a)
VALUE obj, a;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
long len;
- GetMmap(obj, t_mm, MM_MODIFY);
+ GetMmap(obj, i_mm, MM_MODIFY);
len = NUM2LONG(a);
if (len > 0) {
- mm_expandf(t_mm, t_mm->len + len);
+ mm_expandf(i_mm, i_mm->t->len + len);
}
- return UINT2NUM(t_mm->len);
+ return UINT2NUM(i_mm->t->len);
}
static VALUE
mm_i_options(arg, obj)
VALUE arg, obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
char *options;
VALUE key, value;
- Data_Get_Struct(obj, mm_mmap, t_mm);
+ Data_Get_Struct(obj, mm_ipc, i_mm);
key = rb_ary_entry(arg, 0);
value = rb_ary_entry(arg, 1);
key = rb_obj_as_string(key);
options = StringValuePtr(key);
if (strcmp(options, "length") == 0) {
- t_mm->len = NUM2UINT(value);
- if (t_mm->len <= 0) {
- rb_raise(rb_eArgError, "Invalid value for length %d", t_mm->len);
+ i_mm->t->len = NUM2UINT(value);
+ if (i_mm->t->len <= 0) {
+ rb_raise(rb_eArgError, "Invalid value for length %d", i_mm->t->len);
}
- t_mm->flag |= MM_FIXED;
+ i_mm->t->flag |= MM_FIXED;
}
else if (strcmp(options, "offset") == 0) {
- t_mm->offset = NUM2INT(value);
- if (t_mm->offset < 0) {
- rb_raise(rb_eArgError, "Invalid value for offset %d", t_mm->offset);
+ i_mm->t->offset = NUM2INT(value);
+ if (i_mm->t->offset < 0) {
+ rb_raise(rb_eArgError, "Invalid value for offset %d", i_mm->t->offset);
}
- t_mm->flag |= MM_FIXED;
+ i_mm->t->flag |= MM_FIXED;
}
else if (strcmp(options, "advice") == 0) {
- t_mm->advice = NUM2INT(value);
+ i_mm->t->advice = NUM2INT(value);
}
else if (strcmp(options, "increment") == 0) {
int incr = NUM2INT(value);
if (incr < 0) {
rb_raise(rb_eArgError, "Invalid value for increment %d", incr);
}
- t_mm->incr = incr;
+ i_mm->t->incr = incr;
+ }
+ else if (strcmp(options, "initialize") == 0) {
+ }
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ else if (strcmp(options, "ipc") == 0) {
+ if (value != Qtrue && TYPE(value) != T_HASH) {
+ rb_raise(rb_eArgError, "Expected an Hash for :ipc");
+ }
+ i_mm->t->shmid = value;
+ i_mm->t->flag |= (MM_IPC | MM_TMP);
+ }
+#endif
+ else {
+ rb_warning("Unknown option `%s'", options);
}
return Qnil;
}
+#if HAVE_SEMCTL && HAVE_SHMCTL
+
+static VALUE
+mm_i_ipc(arg, obj)
+ VALUE arg, obj;
+{
+ mm_ipc *i_mm;
+ char *options;
+ VALUE key, value;
+
+ Data_Get_Struct(obj, mm_ipc, i_mm);
+ key = rb_ary_entry(arg, 0);
+ value = rb_ary_entry(arg, 1);
+ key = rb_obj_as_string(key);
+ options = StringValuePtr(key);
+ if (strcmp(options, "key") == 0) {
+ i_mm->t->key = rb_funcall2(value, rb_intern("to_int"), 0, 0);
+ }
+ else if (strcmp(options, "permanent") == 0) {
+ if (RTEST(value)) {
+ i_mm->t->flag &= ~MM_TMP;
+ }
+ }
+ else if (strcmp(options, "mode") == 0) {
+ i_mm->t->semid = NUM2INT(value);
+ }
+ else {
+ rb_warning("Unknown option `%s'", options);
+ }
+ return Qnil;
+}
+
+#endif
+
static VALUE
mm_s_new(argc, argv, obj)
int argc;
@@ -331,10 +570,12 @@ mm_s_alloc(obj)
VALUE obj;
{
VALUE res;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- res = Data_Make_Struct(obj, mm_mmap, 0, mm_free, t_mm);
- t_mm->incr = EXP_INCR_SIZE;
+ res = Data_Make_Struct(obj, mm_ipc, 0, mm_free, i_mm);
+ i_mm->t = ALLOC_N(mm_mmap, 1);
+ MEMZERO(i_mm->t, mm_mmap, 1);
+ i_mm->t->incr = EXP_INCR_SIZE;
return res;
}
@@ -347,7 +588,7 @@ mm_init(argc, argv, obj)
int fd, smode = 0, pmode = 0, vscope, perm, init;
MMAP_RETTYPE addr;
VALUE fname, fdv, vmode, scope, options;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
char *path, *mode;
size_t size = 0;
off_t offset;
@@ -456,16 +697,91 @@ mm_init(argc, argv, obj)
size = NUM2INT(vmode);
}
}
- Data_Get_Struct(obj, mm_mmap, t_mm);
+ Data_Get_Struct(obj, mm_ipc, i_mm);
+ if (i_mm->t->flag & MM_FROZEN) {
+ rb_raise(rb_eArgError, "frozen mmap");
+ }
+ i_mm->t->shmid = 0;
+ i_mm->t->semid = 0;
offset = 0;
if (options != Qnil) {
rb_iterate(rb_each, options, mm_i_options, obj);
- if (path && (t_mm->len + t_mm->offset) > st.st_size) {
+ if (path && (i_mm->t->len + i_mm->t->offset) > st.st_size) {
rb_raise(rb_eArgError, "invalid value for length (%d) or offset (%d)",
- t_mm->len, t_mm->offset);
+ i_mm->t->len, i_mm->t->offset);
}
- if (t_mm->len) size = t_mm->len;
- offset = t_mm->offset;
+ if (i_mm->t->len) size = i_mm->t->len;
+ offset = i_mm->t->offset;
+#if HAVE_SEMCTL && HAVE_SHMCTL
+ if (i_mm->t->flag & MM_IPC) {
+ key_t key;
+ int shmid, semid, mode;
+ union semun sem_val;
+ struct shmid_ds buf;
+ mm_mmap *data;
+
+ if (!(vscope & MAP_SHARED)) {
+ rb_warning("Probably it will not do what you expect ...");
+ }
+ i_mm->t->key = -1;
+ i_mm->t->semid = 0;
+ if (TYPE(i_mm->t->shmid) == T_HASH) {
+ rb_iterate(rb_each, i_mm->t->shmid, mm_i_ipc, obj);
+ }
+ i_mm->t->shmid = 0;
+ if (i_mm->t->semid) {
+ mode = i_mm->t->semid;
+ i_mm->t->semid = 0;
+ }
+ else {
+ mode = 0644;
+ }
+ if ((int)i_mm->t->key <= 0) {
+ mode |= IPC_CREAT;
+ strcpy(template, "/tmp/ruby_mmap.XXXXXX");
+ if (mkstemp(template) == -1) {
+ rb_sys_fail("mkstemp()");
+ }
+ if ((key = ftok(template, 'R')) == -1) {
+ rb_sys_fail("ftok()");
+ }
+ }
+ else {
+ key = (key_t)i_mm->t->key;
+ }
+ if ((shmid = shmget(key, sizeof(mm_ipc), mode)) == -1) {
+ rb_sys_fail("shmget()");
+ }
+ data = shmat(shmid, (void *)0, 0);
+ if (data == (mm_mmap *)-1) {
+ rb_sys_fail("shmat()");
+ }
+ if (i_mm->t->flag & MM_TMP) {
+ if (shmctl(shmid, IPC_RMID, &buf) == -1) {
+ rb_sys_fail("shmctl()");
+ }
+ }
+ if ((semid = semget(key, 1, mode)) == -1) {
+ rb_sys_fail("semget()");
+ }
+ if (mode & IPC_CREAT) {
+ sem_val.val = 1;
+ if (semctl(semid, 0, SETVAL, sem_val) == -1) {
+ rb_sys_fail("semctl()");
+ }
+ }
+ memcpy(data, i_mm->t, sizeof(mm_mmap));
+ free(i_mm->t);
+ i_mm->t = data;
+ i_mm->t->key = key;
+ i_mm->t->semid = semid;
+ i_mm->t->shmid = shmid;
+ if (i_mm->t->flag & MM_TMP) {
+ i_mm->t->template = ALLOC_N(char, strlen(template) + 1);
+ strcpy(i_mm->t->template, template);
+ }
+ }
+#endif
}
init = 0;
if (anonymous) {
@@ -478,21 +794,21 @@ mm_init(argc, argv, obj)
}
smode = O_RDWR;
pmode = PROT_READ | PROT_WRITE;
- t_mm->flag |= MM_FIXED;
+ i_mm->t->flag |= MM_FIXED | MM_ANON;
}
else {
if (size == 0 && (smode & O_RDWR)) {
- if (lseek(fd, t_mm->incr - 1, SEEK_END) == -1) {
- rb_raise(rb_eIOError, "Can't lseek %d", t_mm->incr - 1);
+ if (lseek(fd, i_mm->t->incr - 1, SEEK_END) == -1) {
+ rb_raise(rb_eIOError, "Can't lseek %d", i_mm->t->incr - 1);
}
if (write(fd, "\000", 1) != 1) {
rb_raise(rb_eIOError, "Can't extend %s", path);
}
init = 1;
- size = t_mm->incr;
+ size = i_mm->t->incr;
}
if (!NIL_P(fdv)) {
- t_mm->flag |= MM_FIXED;
+ i_mm->t->flag |= MM_FIXED;
}
}
addr = mmap(0, size, pmode, vscope, fd, offset);
@@ -503,7 +819,7 @@ mm_init(argc, argv, obj)
rb_raise(rb_eArgError, "mmap failed (%d)", errno);
}
#ifdef MADV_NORMAL
- if (t_mm->advice && madvise(addr, size, t_mm->advice) == -1) {
+ if (i_mm->t->advice && madvise(addr, size, i_mm->t->advice) == -1) {
rb_raise(rb_eArgError, "madvise(%d)", errno);
}
#endif
@@ -517,20 +833,20 @@ mm_init(argc, argv, obj)
memset(addr, ptr[0], size);
}
}
- t_mm->addr = addr;
- t_mm->len = size;
- if (!init) t_mm->real = size;
- t_mm->pmode = pmode;
- t_mm->vscope = vscope;
- t_mm->smode = smode;
- t_mm->path = (path)?ruby_strdup(path):(char *)-1;
+ i_mm->t->addr = addr;
+ i_mm->t->len = size;
+ if (!init) i_mm->t->real = size;
+ i_mm->t->pmode = pmode;
+ i_mm->t->vscope = vscope;
+ i_mm->t->smode = smode & ~O_TRUNC;
+ i_mm->t->path = (path)?ruby_strdup(path):(char *)-1;
if (smode == O_RDONLY) {
obj = rb_obj_freeze(obj);
- t_mm->flag |= MM_FROZEN;
+ i_mm->t->flag |= MM_FROZEN;
}
else {
if (smode == O_WRONLY) {
- t_mm->flag |= MM_FIXED;
+ i_mm->t->flag |= MM_FIXED;
}
OBJ_TAINT(obj);
}
@@ -542,7 +858,7 @@ mm_msync(argc, argv, obj)
int argc;
VALUE *argv, obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
VALUE oflag;
int ret;
int flag = MS_SYNC;
@@ -551,12 +867,12 @@ mm_msync(argc, argv, obj)
rb_scan_args(argc, argv, "01", &oflag);
flag = NUM2INT(oflag);
}
- GetMmap(obj, t_mm, MM_MODIFY);
- if ((ret = msync(t_mm->addr, t_mm->len, flag)) != 0) {
+ GetMmap(obj, i_mm, MM_MODIFY);
+ if ((ret = msync(i_mm->t->addr, i_mm->t->len, flag)) != 0) {
rb_raise(rb_eArgError, "msync(%d)", ret);
}
- if (t_mm->real < t_mm->len && t_mm->vscope != MAP_PRIVATE)
- mm_expandf(t_mm, t_mm->real);
+ if (i_mm->t->real < i_mm->t->len && i_mm->t->vscope != MAP_PRIVATE)
+ mm_expandf(i_mm, i_mm->t->real);
return obj;
}
@@ -564,11 +880,11 @@ static VALUE
mm_mprotect(obj, a)
VALUE obj, a;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
int ret, pmode;
char *smode;
- GetMmap(obj, t_mm, 0);
+ GetMmap(obj, i_mm, 0);
if (TYPE(a) == T_STRING) {
smode = StringValuePtr(a);
if (strcmp(smode, "r") == 0) pmode = PROT_READ;
@@ -582,23 +898,23 @@ mm_mprotect(obj, a)
else {
pmode = NUM2INT(a);
}
- if ((pmode & PROT_WRITE) && (t_mm->flag & MM_FROZEN))
+ if ((pmode & PROT_WRITE) && (i_mm->t->flag & MM_FROZEN))
rb_error_frozen("mmap");
- if ((ret = mprotect(t_mm->addr, t_mm->len, pmode | PROT_READ)) != 0) {
+ if ((ret = mprotect(i_mm->t->addr, i_mm->t->len, pmode | PROT_READ)) != 0) {
rb_raise(rb_eArgError, "mprotect(%d)", ret);
}
- t_mm->pmode = pmode;
+ i_mm->t->pmode = pmode;
if (pmode & PROT_READ) {
- if (pmode & PROT_WRITE) t_mm->smode = O_RDWR;
+ if (pmode & PROT_WRITE) i_mm->t->smode = O_RDWR;
else {
- t_mm->smode = O_RDONLY;
+ i_mm->t->smode = O_RDONLY;
obj = rb_obj_freeze(obj);
- t_mm->flag |= MM_FROZEN;
+ i_mm->t->flag |= MM_FROZEN;
}
}
else if (pmode & PROT_WRITE) {
- t_mm->flag |= MM_FIXED;
- t_mm->smode = O_WRONLY;
+ i_mm->t->flag |= MM_FIXED;
+ i_mm->t->smode = O_WRONLY;
}
return obj;
}
@@ -608,13 +924,13 @@ static VALUE
mm_madvise(obj, a)
VALUE obj, a;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(obj, t_mm, 0);
- if (madvise(t_mm->addr, t_mm->len, NUM2INT(a)) == -1) {
+ GetMmap(obj, i_mm, 0);
+ if (madvise(i_mm->t->addr, i_mm->t->len, NUM2INT(a)) == -1) {
rb_raise(rb_eTypeError, "madvise(%d)", errno);
}
- t_mm->advice = NUM2INT(a);
+ i_mm->t->advice = NUM2INT(a);
return Qnil;
}
#endif
@@ -622,10 +938,10 @@ mm_madvise(obj, a)
#define StringMmap(b, bp, bl) \
do { \
if (TYPE(b) == T_DATA && RDATA(b)->dfree == (RUBY_DATA_FUNC)mm_free) { \
- mm_mmap *b_mm; \
+ mm_ipc *b_mm; \
GetMmap(b, b_mm, 0); \
- bp = b_mm->addr; \
- bl = b_mm->real; \
+ bp = b_mm->t->addr; \
+ bl = b_mm->t->real; \
} \
else { \
bp = StringValuePtr(b); \
@@ -635,7 +951,7 @@ do { \
static void
mm_update(str, beg, len, val)
- mm_mmap *str;
+ mm_ipc *str;
VALUE val;
long beg;
long len;
@@ -643,42 +959,48 @@ mm_update(str, beg, len, val)
char *valp;
long vall;
- if (str->flag & MM_FROZEN) rb_error_frozen("mmap");
+ if (str->t->flag & MM_FROZEN) rb_error_frozen("mmap");
if (len < 0) rb_raise(rb_eIndexError, "negative length %d", len);
+ mm_lock(str);
if (beg < 0) {
- beg += str->real;
+ beg += str->t->real;
}
- if (beg < 0 || str->real < (size_t)beg) {
+ if (beg < 0 || str->t->real < (size_t)beg) {
if (beg < 0) {
- beg -= str->real;
+ beg -= str->t->real;
}
+ mm_unlock(str);
rb_raise(rb_eIndexError, "index %d out of string", beg);
}
- if (str->real < (size_t)(beg + len)) {
- len = str->real - beg;
+ if (str->t->real < (size_t)(beg + len)) {
+ len = str->t->real - beg;
}
+ mm_unlock(str);
StringMmap(val, valp, vall);
+ mm_lock(str);
- if ((str->flag & MM_FIXED) && vall != len) {
+ if ((str->t->flag & MM_FIXED) && vall != len) {
+ mm_unlock(str);
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
if (len < vall) {
- mm_realloc(str, str->real + vall - len);
+ mm_realloc(str, str->t->real + vall - len);
}
if (vall != len) {
- memmove((char *)str->addr + beg + vall,
- (char *)str->addr + beg + len,
- str->real - (beg + len));
+ memmove((char *)str->t->addr + beg + vall,
+ (char *)str->t->addr + beg + len,
+ str->t->real - (beg + len));
}
- if (str->real < (size_t)beg && len < 0) {
- MEMZERO(str->addr + str->real, char, -len);
+ if (str->t->real < (size_t)beg && len < 0) {
+ MEMZERO(str->t->addr + str->t->real, char, -len);
}
if (vall > 0) {
- memmove((char *)str->addr + beg, valp, vall);
+ memmove((char *)str->t->addr + beg, valp, vall);
}
- str->real += vall - len;
+ str->t->real += vall - len;
+ mm_unlock(str);
}
static VALUE
@@ -752,17 +1074,18 @@ mm_correct_backref()
}
static VALUE
-mm_sub_bang(argc, argv, obj)
- int argc;
- VALUE *argv;
- VALUE obj;
+mm_sub_bang_int(bang_st)
+ mm_bang *bang_st;
{
+ int argc = bang_st->argc;
+ VALUE *argv = bang_st->argv;
+ VALUE obj = bang_st->obj;
VALUE pat, repl = Qnil, match, str, res;
struct re_registers *regs;
int start, iter = 0;
int tainted = 0;
long plen;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
if (argc == 1 && rb_block_given_p()) {
iter = 1;
@@ -774,7 +1097,7 @@ mm_sub_bang(argc, argv, obj)
else {
rb_raise(rb_eArgError, "wrong # of arguments(%d for 2)", argc);
}
- GetMmap(obj, t_mm, MM_MODIFY);
+ GetMmap(obj, i_mm, MM_MODIFY);
str = mm_str(obj, MM_MODIFY | MM_ORIGIN);
pat = get_pat(argv[0]);
@@ -796,11 +1119,11 @@ mm_sub_bang(argc, argv, obj)
if (OBJ_TAINTED(repl)) tainted = 1;
plen = END(0) - BEG(0);
if (RSTRING(repl)->len > plen) {
- mm_realloc(t_mm, RSTRING(str)->len + RSTRING(repl)->len - plen);
- RSTRING(str)->ptr = t_mm->addr;
+ mm_realloc(i_mm, RSTRING(str)->len + RSTRING(repl)->len - plen);
+ RSTRING(str)->ptr = i_mm->t->addr;
}
if (RSTRING(repl)->len != plen) {
- if (t_mm->flag & MM_FIXED) {
+ if (i_mm->t->flag & MM_FIXED) {
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
memmove(RSTRING(str)->ptr + start + BEG(0) + RSTRING(repl)->len,
@@ -809,7 +1132,7 @@ mm_sub_bang(argc, argv, obj)
}
memcpy(RSTRING(str)->ptr + start + BEG(0),
RSTRING(repl)->ptr, RSTRING(repl)->len);
- t_mm->real += RSTRING(repl)->len - plen;
+ i_mm->t->real += RSTRING(repl)->len - plen;
if (tainted) OBJ_TAINT(obj);
res = obj;
@@ -819,18 +1142,43 @@ mm_sub_bang(argc, argv, obj)
}
static VALUE
-mm_gsub_bang(argc, argv, obj)
+mm_sub_bang(argc, argv, obj)
int argc;
VALUE *argv;
VALUE obj;
{
+ VALUE res;
+ mm_bang bang_st;
+ mm_ipc *i_mm;
+
+ bang_st.argc = argc;
+ bang_st.argv = argv;
+ bang_st.obj = obj;
+ GetMmap(obj, i_mm, MM_MODIFY);
+ if (i_mm->t->flag & MM_IPC) {
+ mm_lock(i_mm, Qtrue);
+ res = rb_ensure(mm_sub_bang_int, (VALUE)&bang_st, mm_vunlock, obj);
+ }
+ else {
+ res = mm_sub_bang_int(&bang_st);
+ }
+ return res;
+}
+
+static VALUE
+mm_gsub_bang_int(bang_st)
+ mm_bang *bang_st;
+{
+ int argc = bang_st->argc;
+ VALUE *argv = bang_st->argv;
+ VALUE obj = bang_st->obj;
VALUE pat, val, repl = Qnil, match, str;
struct re_registers *regs;
long beg, offset;
int start, iter = 0;
int tainted = 0;
long plen;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
if (argc == 1 && rb_block_given_p()) {
iter = 1;
@@ -842,7 +1190,7 @@ mm_gsub_bang(argc, argv, obj)
else {
rb_raise(rb_eArgError, "wrong # of arguments(%d for 2)", argc);
}
- GetMmap(obj, t_mm, MM_MODIFY);
+ GetMmap(obj, i_mm, MM_MODIFY);
str = mm_str(obj, MM_MODIFY | MM_ORIGIN);
pat = get_pat(argv[0]);
@@ -868,11 +1216,11 @@ mm_gsub_bang(argc, argv, obj)
}
if (OBJ_TAINTED(repl)) tainted = 1;
plen = END(0) - BEG(0);
- if ((t_mm->real + RSTRING(val)->len - plen) > t_mm->len) {
- mm_realloc(t_mm, RSTRING(str)->len + RSTRING(val)->len - plen);
+ if ((i_mm->t->real + RSTRING(val)->len - plen) > i_mm->t->len) {
+ mm_realloc(i_mm, RSTRING(str)->len + RSTRING(val)->len - plen);
}
if (RSTRING(val)->len != plen) {
- if (t_mm->flag & MM_FIXED) {
+ if (i_mm->t->flag & MM_FIXED) {
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
memmove(RSTRING(str)->ptr + start + BEG(0) + RSTRING(val)->len,
@@ -882,7 +1230,7 @@ mm_gsub_bang(argc, argv, obj)
memcpy(RSTRING(str)->ptr + start + BEG(0),
RSTRING(val)->ptr, RSTRING(val)->len);
RSTRING(str)->len += RSTRING(val)->len - plen;
- t_mm->real = RSTRING(str)->len;
+ i_mm->t->real = RSTRING(str)->len;
if (BEG(0) == END(0)) {
offset = start + END(0) + mbclen2(RSTRING(str)->ptr[END(0)], pat);
offset += RSTRING(val)->len - plen;
@@ -899,6 +1247,30 @@ mm_gsub_bang(argc, argv, obj)
return obj;
}
+static VALUE
+mm_gsub_bang(argc, argv, obj)
+ int argc;
+ VALUE *argv;
+ VALUE obj;
+{
+ VALUE res;
+ mm_bang bang_st;
+ mm_ipc *i_mm;
+
+ bang_st.argc = argc;
+ bang_st.argv = argv;
+ bang_st.obj = obj;
+ GetMmap(obj, i_mm, MM_MODIFY);
+ if (i_mm->t->flag & MM_IPC) {
+ mm_lock(i_mm, Qtrue);
+ res = rb_ensure(mm_gsub_bang_int, (VALUE)&bang_st, mm_vunlock, obj);
+ }
+ else {
+ res = mm_gsub_bang_int(&bang_st);
+ }
+ return res;
+}
+
static VALUE mm_index __((int, VALUE *, VALUE));
#if HAVE_RB_DEFINE_ALLOC_FUNC
@@ -911,7 +1283,7 @@ mm_subpat_set(obj, re, offset, val)
{
VALUE str, match;
int start, end, len;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
str = mm_str(obj, MM_MODIFY | MM_ORIGIN);
if (rb_reg_search(re, str, 0, 0) < 0) {
@@ -928,8 +1300,8 @@ mm_subpat_set(obj, re, offset, val)
}
end = RMATCH(match)->END(offset);
len = end - start;
- GetMmap(obj, t_mm, MM_MODIFY);
- mm_update(t_mm, start, len, val);
+ GetMmap(obj, i_mm, MM_MODIFY);
+ mm_update(i_mm, start, len, val);
}
#endif
@@ -940,28 +1312,28 @@ mm_aset(str, indx, val)
VALUE indx, val;
{
long idx;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(str, t_mm, MM_MODIFY);
+ GetMmap(str, i_mm, MM_MODIFY);
switch (TYPE(indx)) {
case T_FIXNUM:
num_index:
idx = NUM2INT(indx);
if (idx < 0) {
- idx += t_mm->real;
+ idx += i_mm->t->real;
}
- if (idx < 0 || t_mm->real <= (size_t)idx) {
+ if (idx < 0 || i_mm->t->real <= (size_t)idx) {
rb_raise(rb_eIndexError, "index %d out of string", idx);
}
if (FIXNUM_P(val)) {
- if (t_mm->real == (size_t)idx) {
- t_mm->real += 1;
- mm_realloc(t_mm, t_mm->real);
+ if (i_mm->t->real == (size_t)idx) {
+ i_mm->t->real += 1;
+ mm_realloc(i_mm, i_mm->t->real);
}
- ((char *)t_mm->addr)[idx] = NUM2INT(val) & 0xff;
+ ((char *)i_mm->t->addr)[idx] = NUM2INT(val) & 0xff;
}
else {
- mm_update(t_mm, idx, 1, val);
+ mm_update(i_mm, idx, 1, val);
}
return val;
@@ -984,7 +1356,7 @@ mm_aset(str, indx, val)
res = mm_index(1, &indx, str);
if (!NIL_P(res)) {
- mm_update(t_mm, NUM2LONG(res), RSTRING(indx)->len, val);
+ mm_update(i_mm, NUM2LONG(res), RSTRING(indx)->len, val);
}
return val;
}
@@ -993,8 +1365,8 @@ mm_aset(str, indx, val)
/* check if indx is Range */
{
long beg, len;
- if (rb_range_beg_len(indx, &beg, &len, t_mm->real, 2)) {
- mm_update(t_mm, beg, len, val);
+ if (rb_range_beg_len(indx, &beg, &len, i_mm->t->real, 2)) {
+ mm_update(i_mm, beg, len, val);
return val;
}
}
@@ -1009,9 +1381,9 @@ mm_aset_m(argc, argv, str)
VALUE *argv;
VALUE str;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(str, t_mm, MM_MODIFY);
+ GetMmap(str, i_mm, MM_MODIFY);
if (argc == 3) {
long beg, len;
@@ -1024,7 +1396,7 @@ mm_aset_m(argc, argv, str)
{
beg = NUM2INT(argv[0]);
len = NUM2INT(argv[1]);
- mm_update(t_mm, beg, len, argv[2]);
+ mm_update(i_mm, beg, len, argv[2]);
}
return argv[2];
}
@@ -1040,17 +1412,17 @@ static VALUE
mm_insert(str, idx, str2)
VALUE str, idx, str2;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
long pos = NUM2LONG(idx);
- GetMmap(str, t_mm, MM_MODIFY);
+ GetMmap(str, i_mm, MM_MODIFY);
if (pos == -1) {
pos = RSTRING(str)->len;
}
else if (pos < 0) {
pos++;
}
- mm_update(t_mm, pos, 0, str2);
+ mm_update(i_mm, pos, 0, str2);
return str;
}
@@ -1088,25 +1460,27 @@ mm_cat(str, ptr, len)
const char *ptr;
long len;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
char *sptr;
- GetMmap(str, t_mm, MM_MODIFY);
+ GetMmap(str, i_mm, MM_MODIFY);
if (len > 0) {
int poffset = -1;
- sptr = (char *)t_mm->addr;
+ sptr = (char *)i_mm->t->addr;
if (sptr <= ptr &&
- ptr < sptr + t_mm->real) {
+ ptr < sptr + i_mm->t->real) {
poffset = ptr - sptr;
}
- mm_realloc(t_mm, t_mm->real + len);
- sptr = (char *)t_mm->addr;
+ mm_lock(i_mm, Qtrue);
+ mm_realloc(i_mm, i_mm->t->real + len);
+ sptr = (char *)i_mm->t->addr;
if (ptr) {
if (poffset >= 0) ptr = sptr + poffset;
- memcpy(sptr + t_mm->real, ptr, len);
+ memcpy(sptr + i_mm->t->real, ptr, len);
}
- t_mm->real += len;
+ i_mm->t->real += len;
+ mm_unlock(i_mm);
}
return str;
}
@@ -1142,31 +1516,33 @@ mm_strip_bang(str)
VALUE str;
{
char *s, *t, *e;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(str, t_mm, MM_MODIFY);
- s = (char *)t_mm->addr;
- e = t = s + t_mm->real;
+ GetMmap(str, i_mm, MM_MODIFY);
+ mm_lock(i_mm, Qtrue);
+ s = (char *)i_mm->t->addr;
+ e = t = s + i_mm->t->real;
while (s < t && ISSPACE(*s)) s++;
t--;
while (s <= t && ISSPACE(*t)) t--;
t++;
- if (t_mm->real != (t - s) && (t_mm->flag & MM_FIXED)) {
+ if (i_mm->t->real != (t - s) && (i_mm->t->flag & MM_FIXED)) {
+ mm_unlock(i_mm);
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
- t_mm->real = t-s;
- if (s > (char *)t_mm->addr) {
- memmove(t_mm->addr, s, t_mm->real);
- ((char *)t_mm->addr)[t_mm->real] = '\0';
+ i_mm->t->real = t-s;
+ if (s > (char *)i_mm->t->addr) {
+ memmove(i_mm->t->addr, s, i_mm->t->real);
+ ((char *)i_mm->t->addr)[i_mm->t->real] = '\0';
}
else if (t < e) {
- ((char *)t_mm->addr)[t_mm->real] = '\0';
+ ((char *)i_mm->t->addr)[i_mm->t->real] = '\0';
}
else {
- return Qnil;
+ str = Qnil;
}
-
+ mm_unlock(i_mm);
return str;
}
@@ -1177,22 +1553,26 @@ mm_lstrip_bang(str)
VALUE str;
{
char *s, *t, *e;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(str, t_mm, MM_MODIFY);
- s = (char *)t_mm->addr;
- e = t = s + t_mm->real;
+ GetMmap(str, i_mm, MM_MODIFY);
+ mm_lock(i_mm, Qtrue);
+ s = (char *)i_mm->t->addr;
+ e = t = s + i_mm->t->real;
while (s < t && ISSPACE(*s)) s++;
- if (t_mm->real != (size_t)(t - s) && (t_mm->flag & MM_FIXED)) {
+ if (i_mm->t->real != (size_t)(t - s) && (i_mm->t->flag & MM_FIXED)) {
+ mm_unlock(i_mm);
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
- t_mm->real = t - s;
- if (s > (char *)t_mm->addr) {
- memmove(t_mm->addr, s, t_mm->real);
- ((char *)t_mm->addr)[t_mm->real] = '\0';
+ i_mm->t->real = t - s;
+ if (s > (char *)i_mm->t->addr) {
+ memmove(i_mm->t->addr, s, i_mm->t->real);
+ ((char *)i_mm->t->addr)[i_mm->t->real] = '\0';
+ mm_unlock(i_mm);
return str;
}
+ mm_unlock(i_mm);
return Qnil;
}
@@ -1201,22 +1581,26 @@ mm_rstrip_bang(str)
VALUE str;
{
char *s, *t, *e;
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(str, t_mm, MM_MODIFY);
- s = (char *)t_mm->addr;
- e = t = s + t_mm->real;
+ GetMmap(str, i_mm, MM_MODIFY);
+ mm_lock(i_mm, Qtrue);
+ s = (char *)i_mm->t->addr;
+ e = t = s + i_mm->t->real;
t--;
while (s <= t && ISSPACE(*t)) t--;
t++;
- if (t_mm->real != (size_t)(t - s) && (t_mm->flag & MM_FIXED)) {
+ if (i_mm->t->real != (size_t)(t - s) && (i_mm->t->flag & MM_FIXED)) {
+ mm_unlock(i_mm);
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
- t_mm->real = t - s;
+ i_mm->t->real = t - s;
if (t < e) {
- ((char *)t_mm->addr)[t_mm->real] = '\0';
+ ((char *)i_mm->t->addr)[i_mm->t->real] = '\0';
+ mm_unlock(i_mm);
return str;
}
+ mm_unlock(i_mm);
return Qnil;
}
@@ -1285,15 +1669,15 @@ mm_equal(a, b)
VALUE a, b;
{
VALUE result;
- mm_mmap *t_mm, *u_mm;
+ mm_ipc *i_mm, *u_mm;
if (a == b) return Qtrue;
if (TYPE(b) != T_DATA || RDATA(b)->dfree != (RUBY_DATA_FUNC)mm_free)
return Qfalse;
- GetMmap(a, t_mm, 0);
+ GetMmap(a, i_mm, 0);
GetMmap(b, u_mm, 0);
- if (t_mm->real != u_mm->real)
+ if (i_mm->t->real != u_mm->t->real)
return Qfalse;
a = mm_str(a, MM_ORIGIN);
b = mm_str(b, MM_ORIGIN);
@@ -1308,15 +1692,15 @@ mm_eql(a, b)
VALUE a, b;
{
VALUE result;
- mm_mmap *t_mm, *u_mm;
+ mm_ipc *i_mm, *u_mm;
if (a == b) return Qtrue;
if (TYPE(b) != T_DATA || RDATA(b)->dfree != (RUBY_DATA_FUNC)mm_free)
return Qfalse;
- GetMmap(a, t_mm, 0);
+ GetMmap(a, i_mm, 0);
GetMmap(b, u_mm, 0);
- if (t_mm->real != u_mm->real)
+ if (i_mm->t->real != u_mm->t->real)
return Qfalse;
a = mm_str(a, MM_ORIGIN);
b = mm_str(b, MM_ORIGIN);
@@ -1343,20 +1727,20 @@ static VALUE
mm_size(a)
VALUE a;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(a, t_mm, 0);
- return UINT2NUM(t_mm->real);
+ GetMmap(a, i_mm, 0);
+ return UINT2NUM(i_mm->t->real);
}
static VALUE
mm_empty(a)
VALUE a;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- GetMmap(a, t_mm, 0);
- if (t_mm->real == 0) return Qtrue;
+ GetMmap(a, i_mm, 0);
+ if (i_mm->t->real == 0) return Qtrue;
return Qfalse;
}
@@ -1376,33 +1760,59 @@ mm_recycle(str)
}
static VALUE
+mm_i_bang(bang_st)
+ mm_bang *bang_st;
+{
+ VALUE str, res;
+ mm_ipc *i_mm;
+
+ str = mm_str(bang_st->obj, bang_st->flag);
+ if (bang_st->flag & MM_PROTECT) {
+ VALUE tmp[4];
+ tmp[0] = str;
+ tmp[1] = (VALUE)bang_st->id;
+ tmp[2] = (VALUE)bang_st->argc;
+ tmp[3] = (VALUE)bang_st->argv;
+ res = rb_ensure(mm_protect_bang, (VALUE)tmp, mm_recycle, str);
+ }
+ else {
+ res = rb_funcall2(str, bang_st->id, bang_st->argc, bang_st->argv);
+ rb_gc_force_recycle(str);
+ }
+ if (res != Qnil) {
+ GetMmap(bang_st->obj, i_mm, 0);
+ i_mm->t->real = RSTRING(str)->len;
+ }
+ return res;
+}
+
+
+static VALUE
mm_bang_i(obj, flag, id, argc, argv)
VALUE obj, *argv;
int flag, id, argc;
{
- VALUE str, res;
- mm_mmap *t_mm;
+ VALUE res;
+ mm_ipc *i_mm;
+ mm_bang bang_st;
- GetMmap(obj, t_mm, 0);
- if ((flag & MM_CHANGE) && (t_mm->flag & MM_FIXED)) {
+ GetMmap(obj, i_mm, 0);
+ if ((flag & MM_CHANGE) && (i_mm->t->flag & MM_FIXED)) {
rb_raise(rb_eTypeError, "try to change the size of a fixed map");
}
- str = mm_str(obj, flag);
- if (flag & MM_PROTECT) {
- VALUE tmp[4];
- tmp[0] = str;
- tmp[1] = (VALUE)id;
- tmp[2] = (VALUE)argc;
- tmp[3] = (VALUE)argv;
- res = rb_ensure(mm_protect_bang, (VALUE)tmp, mm_recycle, str);
+ bang_st.obj = obj;
+ bang_st.flag = flag;
+ bang_st.id = id;
+ bang_st.argc = argc;
+ bang_st.argv = argv;
+ if (i_mm->t->flag & MM_IPC) {
+ mm_lock(i_mm, Qtrue);
+ res = rb_ensure(mm_i_bang, (VALUE)&bang_st, mm_vunlock, obj);
}
else {
- res = rb_funcall2(str, id, argc, argv);
- rb_gc_force_recycle(str);
+ res = mm_i_bang(&bang_st);
}
if (res == Qnil) return res;
- GetMmap(obj, t_mm, 0);
- t_mm->real = RSTRING(str)->len;
return (flag & MM_ORIGIN)?res:obj;
}
@@ -1659,16 +2069,19 @@ static VALUE
mm_mlock(obj)
VALUE obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- Data_Get_Struct(obj, mm_mmap, t_mm);
- if (t_mm->flag & MM_LOCK) {
+ Data_Get_Struct(obj, mm_ipc, i_mm);
+ if (i_mm->t->flag & MM_LOCK) {
return obj;
}
- if (mlock(t_mm->addr, t_mm->len) == -1) {
+ if (i_mm->t->flag & MM_ANON) {
+ rb_raise(rb_eArgError, "mlock(anonymous)");
+ }
+ if (mlock(i_mm->t->addr, i_mm->t->len) == -1) {
rb_raise(rb_eArgError, "mlock(%d)", errno);
}
- t_mm->flag |= MM_LOCK;
+ i_mm->t->flag |= MM_LOCK;
return obj;
}
@@ -1676,16 +2089,16 @@ static VALUE
mm_munlock(obj)
VALUE obj;
{
- mm_mmap *t_mm;
+ mm_ipc *i_mm;
- Data_Get_Struct(obj, mm_mmap, t_mm);
- if (!(t_mm->flag & MM_LOCK)) {
+ Data_Get_Struct(obj, mm_ipc, i_mm);
+ if (!(i_mm->t->flag & MM_LOCK)) {
return obj;
}
- if (munlock(t_mm->addr, t_mm->len) == -1) {
+ if (munlock(i_mm->t->addr, i_mm->t->len) == -1) {
rb_raise(rb_eArgError, "munlock(%d)", errno);
}
- t_mm->flag &= ~MM_LOCK;
+ i_mm->t->flag &= ~MM_LOCK;
return obj;
}
@@ -1885,4 +2298,6 @@ Init_mmap()
rb_define_method(mm_cMap, "slice", mm_aref_m, -1);
rb_define_method(mm_cMap, "slice!", mm_slice_bang, -1);
+ rb_define_method(mm_cMap, "semlock", mm_semlock, -1);
+ rb_define_method(mm_cMap, "ipc_key", mm_ipc_key, 0);
}
generated by cgit v1.1-2-g2b99 at 2024-11-21 18:19:15 +0100