static void xputc(char c, FILE* fp, ei_x_buff* x) { if (fp != NULL) putc(c, fp); else ei_x_append_buf(x, &c, 1); }
/* * Now returns non-negative number for success, negative for failure. */ int ei_rpc_to(ei_cnode *ec, int fd, char *mod, char *fun, const char *buf, int len) { ei_x_buff x; erlang_pid *self = ei_self(ec); self->num = fd; /* encode header */ ei_x_new_with_version(&x); ei_x_encode_tuple_header(&x, 2); /* A */ self->num = fd; ei_x_encode_pid(&x, self); /* A 1 */ ei_x_encode_tuple_header(&x, 5); /* B A 2 */ ei_x_encode_atom(&x, "call"); /* B 1 */ ei_x_encode_atom(&x, mod); /* B 2 */ ei_x_encode_atom(&x, fun); /* B 3 */ ei_x_append_buf(&x, buf, len); /* B 4 */ ei_x_encode_atom(&x, "user"); /* B 5 */ /* ei_x_encode_atom(&x,"user"); */ ei_send_reg_encoded(fd, self, "rex", x.buff, x.index); ei_x_free(&x); return 0; } /* rpc_to */
static void xputs(const char* s, FILE* fp, ei_x_buff* x) { if (fp != NULL) fputs(s, fp); else ei_x_append_buf(x, s, strlen(s)); }
static int xprintf(FILE* fp, ei_x_buff* x, const char* fmt, ...) { int r = 0; va_list ap; va_start(ap, fmt); if (fp != NULL) { r = vfprintf(fp, fmt, ap); } else { /* FIXME always enough in buffer??? */ char tmpbuf[2000]; r = vsprintf(tmpbuf, fmt, ap); ei_x_append_buf(x, tmpbuf, strlen(tmpbuf)); } va_end(ap); return r; }
int ei_s_print_term(char** s, const char* buf, int* index) { int r; ei_x_buff x; if (*s != NULL) { x.buff = *s; x.index = 0; x.buffsz = BUFSIZ; } else { ei_x_new(&x); } r = print_term(NULL, &x, buf, index); ei_x_append_buf(&x, "", 1); /* append '\0' */ *s = x.buff; return r; }
static void cmd_ei_send(char* buf, int len) { int index = 0; long fd; erlang_pid pid; ei_x_buff x; if (ei_decode_long(buf, &index, &fd) < 0) fail("expected long"); if (ei_decode_pid(buf, &index, &pid) < 0) fail("expected pid (node)"); if (ei_x_new_with_version(&x) < 0) fail("ei_x_new_with_version"); if (ei_x_append_buf(&x, &buf[index], len - index) < 0) fail("append"); send_errno_result(ei_send(fd, &pid, x.buff, x.index)); ei_x_free(&x); }
static void cmd_ei_reg_send(char* buf, int len) { int index = 0; long fd; char reg_name[MAXATOMLEN]; erlang_pid pid; ei_x_buff x; if (ei_decode_long(buf, &index, &fd) < 0) fail("expected long (fd)"); if (ei_decode_atom(buf, &index, reg_name) < 0) fail("expected atom (reg name)"); if (ei_x_new_with_version(&x) < 0) fail("ei_x_new_with_version"); if (ei_x_append_buf(&x, &buf[index], len - index) < 0) fail("append"); send_errno_result(ei_reg_send(&ec, fd, reg_name, x.buff, x.index)); ei_x_free(&x); }
static ErlDrvSSizeT do_call(ErlDrvData drv_data, unsigned int command, char *buf, ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen, unsigned *ret_flags) { int nlen; ei_x_buff x; switch (command) { case 0: *rbuf = buf; *ret_flags |= DRIVER_CALL_KEEP_BUFFER; return len; case 1: ei_x_new(&x); ei_x_format(&x, "{[], a, [], b, c}"); nlen = x.index; if (nlen > rlen) { *rbuf =driver_alloc(nlen); } memcpy(*rbuf,x.buff,nlen); ei_x_free(&x); return nlen; case 2: ei_x_new(&x); ei_x_encode_version(&x); ei_x_encode_tuple_header(&x,2); ei_x_encode_atom(&x,"return"); ei_x_append_buf(&x,buf+1,len-1); nlen = x.index; if (nlen > rlen) { *rbuf =driver_alloc(nlen); } memcpy(*rbuf,x.buff,nlen); ei_x_free(&x); return nlen; default: return -1; } }
int main(void) #endif { ErlConnect conp; Erl_IpAddr thisipaddr = (Erl_IpAddr)0; FILE *fp = (FILE *)0; char* charp = "foo"; double *doublep = NULL; double doublex = 0.0; ei_cnode xec; ei_reg *ei_regp = NULL; ei_term eterm; ei_x_buff eix; erlang_big *bigp = NULL; erlang_fun efun; erlang_msg *msgp = NULL; erlang_msg emsg; erlang_pid *pidp = NULL; erlang_pid epid; erlang_port eport; erlang_ref eref; erlang_trace etrace; int *intp = NULL; int intx = 0; long *longp = NULL; long longx = 0; short creation = 0; struct ei_reg_stat *ei_reg_statp = NULL; struct ei_reg_tabstat *ei_reg_tabstatp = NULL; struct hostent *hostp = NULL; unsigned char * ucharp = (unsigned char *)"foo"; unsigned long *ulongp = NULL; unsigned long ulongx = 0; void *voidp = NULL; #ifndef VXWORKS EI_LONGLONG *longlongp = (EI_LONGLONG*)NULL; EI_LONGLONG longlongx = 0; EI_ULONGLONG *ulonglongp = (EI_ULONGLONG*)NULL; EI_ULONGLONG ulonglongx = 0; #endif enum erlang_char_encoding enc; intx = erl_errno; ei_connect_init(&xec, charp, charp, creation); ei_connect_xinit (&xec, charp, charp, charp, thisipaddr, charp, creation); ei_connect(&xec, charp); ei_xconnect (&xec, thisipaddr, charp); ei_receive(intx, ucharp, intx); ei_receive_msg(intx, &emsg, &eix); ei_xreceive_msg(intx, &emsg, &eix); ei_send(intx, &epid, charp, intx); ei_reg_send(&xec, intx, charp, charp, intx); ei_rpc(&xec, intx, charp, charp, charp, intx, &eix); ei_rpc_to(&xec, intx, charp, charp, charp, intx); ei_rpc_from(&xec, intx, intx, &emsg, &eix); ei_publish(&xec, intx); ei_accept(&xec, intx, &conp); ei_unpublish(&xec); ei_thisnodename(&xec); ei_thishostname(&xec); ei_thisalivename(&xec); ei_self(&xec); ei_gethostbyname(charp); ei_gethostbyaddr(charp, intx, intx); ei_gethostbyname_r(charp, hostp, charp, intx, intp); ei_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp); ei_encode_version(charp, intp); ei_x_encode_version(&eix); ei_encode_long(charp, intp, longx); ei_x_encode_long(&eix, longx); ei_encode_ulong(charp, intp, ulongx); ei_x_encode_ulong(&eix, ulongx); ei_encode_double(charp, intp, doublex); ei_x_encode_double(&eix, doublex); ei_encode_boolean(charp, intp, intx); ei_x_encode_boolean(&eix, intx); ei_encode_char(charp, intp, 'a'); ei_x_encode_char(&eix, 'a'); ei_encode_string(charp, intp, charp); ei_encode_string_len(charp, intp, charp, intx); ei_x_encode_string(&eix, charp); ei_x_encode_string_len(&eix, charp, intx); ei_encode_atom(charp, intp, charp); ei_encode_atom_as(charp, intp, charp, ERLANG_LATIN1, ERLANG_UTF8); ei_encode_atom_len(charp, intp, charp, intx); ei_encode_atom_len_as(charp, intp, charp, intx, ERLANG_ASCII, ERLANG_LATIN1); ei_x_encode_atom(&eix, charp); ei_x_encode_atom_as(&eix, charp, ERLANG_LATIN1, ERLANG_UTF8); ei_x_encode_atom_len(&eix, charp, intx); ei_x_encode_atom_len_as(&eix, charp, intx, ERLANG_LATIN1, ERLANG_UTF8); ei_encode_binary(charp, intp, (void *)0, longx); ei_x_encode_binary(&eix, (void*)0, intx); ei_encode_pid(charp, intp, &epid); ei_x_encode_pid(&eix, &epid); ei_encode_fun(charp, intp, &efun); ei_x_encode_fun(&eix, &efun); ei_encode_port(charp, intp, &eport); ei_x_encode_port(&eix, &eport); ei_encode_ref(charp, intp, &eref); ei_x_encode_ref(&eix, &eref); ei_encode_trace(charp, intp, &etrace); ei_x_encode_trace(&eix, &etrace); ei_encode_tuple_header(charp, intp, intx); ei_x_encode_tuple_header(&eix, longx); ei_encode_list_header(charp, intp, intx); ei_x_encode_list_header(&eix, longx); /* #define ei_encode_empty_list(buf,i) ei_encode_list_header(buf,i,0) */ ei_x_encode_empty_list(&eix); ei_get_type(charp, intp, intp, intp); ei_get_type_internal(charp, intp, intp, intp); ei_decode_version(charp, intp, intp); ei_decode_long(charp, intp, longp); ei_decode_ulong(charp, intp, ulongp); ei_decode_double(charp, intp, doublep); ei_decode_boolean(charp, intp, intp); ei_decode_char(charp, intp, charp); ei_decode_string(charp, intp, charp); ei_decode_atom(charp, intp, charp); ei_decode_atom_as(charp, intp, charp, MAXATOMLEN_UTF8, ERLANG_WHATEVER, &enc, &enc); ei_decode_binary(charp, intp, (void *)0, longp); ei_decode_fun(charp, intp, &efun); free_fun(&efun); ei_decode_pid(charp, intp, &epid); ei_decode_port(charp, intp, &eport); ei_decode_ref(charp, intp, &eref); ei_decode_trace(charp, intp, &etrace); ei_decode_tuple_header(charp, intp, intp); ei_decode_list_header(charp, intp, intp); ei_decode_ei_term(charp, intp, &eterm); ei_print_term(fp, charp, intp); ei_s_print_term(&charp, charp, intp); ei_x_format(&eix, charp); ei_x_format_wo_ver(&eix, charp); ei_x_new(&eix); ei_x_new_with_version(&eix); ei_x_free(&eix); ei_x_append(&eix, &eix); ei_x_append_buf(&eix, charp, intx); ei_skip_term(charp, intp); ei_reg_open(intx); ei_reg_resize(ei_regp, intx); ei_reg_close(ei_regp); ei_reg_setival(ei_regp, charp, longx); ei_reg_setfval(ei_regp, charp, doublex); ei_reg_setsval(ei_regp, charp, charp); ei_reg_setpval(ei_regp, charp, voidp, intx); ei_reg_setval(ei_regp, charp, intx); ei_reg_getival(ei_regp, charp); ei_reg_getfval(ei_regp, charp); ei_reg_getsval(ei_regp, charp); ei_reg_getpval(ei_regp, charp, intp); ei_reg_getval(ei_regp, charp, intx); ei_reg_markdirty(ei_regp, charp); ei_reg_delete(ei_regp, charp); ei_reg_stat(ei_regp, charp, ei_reg_statp); ei_reg_tabstat(ei_regp, ei_reg_tabstatp); ei_reg_dump(intx, ei_regp, charp, intx); ei_reg_restore(intx, ei_regp, charp); ei_reg_purge(ei_regp); #if defined(HAVE_GMP_H) && defined(HAVE_LIBGMP) { mpz_t obj; ei_decode_bignum(charp, intp, obj); ei_encode_bignum(charp, intp, obj); ei_x_encode_bignum(&eix, obj); } #endif /* HAVE_GMP_H && HAVE_LIBGMP */ #ifndef VXWORKS ei_decode_longlong(charp, intp, longlongp); ei_decode_ulonglong(charp, intp, ulonglongp); ei_encode_longlong(charp, intp, longlongx); ei_encode_ulonglong(charp, intp, ulonglongx); ei_x_encode_longlong(&eix, longlongx); ei_x_encode_ulonglong(&eix, ulonglongx); #endif #ifdef USE_EI_UNDOCUMENTED ei_decode_intlist(charp, intp, longp, intp); ei_receive_encoded(intx, &charp, intp, msgp, intp); ei_send_encoded(intx, pidp, charp, intx); ei_send_reg_encoded(intx, pidp, charp, charp, intx); ei_decode_big(charp, intp, bigp); ei_big_comp(bigp, bigp); ei_big_to_double(bigp, doublep); ei_small_to_big(intx, bigp); ei_alloc_big(intx); ei_free_big(bigp); #endif /* USE_EI_UNDOCUMENTED */ return BUFSIZ + EAGAIN + EHOSTUNREACH + EIO + EI_BIN + EI_DELET + EI_DIRTY + EI_FLT + EI_FORCE + EI_INT + EI_NOPURGE + EI_STR + EMSGSIZE + ENOMEM + ERL_ERROR + ERL_EXIT + ERL_LINK + ERL_MSG + ERL_NO_TIMEOUT + ERL_REG_SEND + ERL_SEND + ERL_TICK + ERL_TIMEOUT + ERL_UNLINK + ETIMEDOUT + MAXATOMLEN; }
int ei_x_append(ei_x_buff* x, const ei_x_buff* x2) { return ei_x_append_buf(x, x2->buff, x2->index); }