diff options
| -rw-r--r-- | include/ouroboros/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | include/ouroboros/flow.h | 61 | ||||
| -rw-r--r-- | src/lib/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/lib/flow.c | 83 |
4 files changed, 146 insertions, 0 deletions
diff --git a/include/ouroboros/CMakeLists.txt b/include/ouroboros/CMakeLists.txt index 324a85ad..0b52a2bc 100644 --- a/include/ouroboros/CMakeLists.txt +++ b/include/ouroboros/CMakeLists.txt @@ -9,6 +9,7 @@ set(HEADER_FILES da.h dev.h du_buff.h + flow.h instance_name.h ipcp.h irm.h diff --git a/include/ouroboros/flow.h b/include/ouroboros/flow.h new file mode 100644 index 00000000..7d8c311e --- /dev/null +++ b/include/ouroboros/flow.h @@ -0,0 +1,61 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Flows + * + * Dimitri Staessens <dimitri.staessens@intec.ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef OUROBOROS_FLOW_H +#define OUROBOROS_FLOW_H + +#include <ouroboros/common.h> + +#include <pthread.h> + +/* same values as fcntl.h */ +#define FLOW_O_RDONLY 00000000 +#define FLOW_O_WRONLY 00000001 +#define FLOW_O_RDWR 00000002 +#define FLOW_O_ACCMODE 00000003 + +#define FLOW_O_NONBLOCK 00004000 +#define FLOW_O_DEFAULT 00000002 + +#define FLOW_O_INVALID (FLOW_O_WRONLY | FLOW_O_RDWR) + +enum flow_state { + FLOW_INIT = 0, + FLOW_ALLOCATED, + FLOW_PENDING +}; + +typedef struct flow { + int32_t port_id; + uint16_t oflags; + enum flow_state state; + + pthread_mutex_t lock; +} flow_t; + +flow_t * flow_create(int32_t port_id); +void flow_destroy(flow_t * flow); + +int flow_set_opts(flow_t * flow, uint16_t opts); +uint16_t flow_get_opts(const flow_t * flow); + +#endif /* OUROBOROS_FLOW_H */ diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt index f18b4d3b..1f7b0f55 100644 --- a/src/lib/CMakeLists.txt +++ b/src/lib/CMakeLists.txt @@ -26,6 +26,7 @@ set(SOURCE_FILES da.c dev.c du_buff.c + flow.c instance_name.c ipcp.c irm.c diff --git a/src/lib/flow.c b/src/lib/flow.c new file mode 100644 index 00000000..04166298 --- /dev/null +++ b/src/lib/flow.c @@ -0,0 +1,83 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Flows + * + * Dimitri Staessens <dimitri.staessens@intec.ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <malloc.h> +#include <ouroboros/flow.h> + +#define OUROBOROS_PREFIX "ipcpd/flow" + +#include <ouroboros/logs.h> + +flow_t * flow_create(int32_t port_id) +{ + flow_t * flow = malloc(sizeof *flow); + if (flow == NULL) { + LOG_DBGF("Could not malloc flow."); + return NULL; + } + + flow->port_id = port_id; + flow->oflags = FLOW_O_DEFAULT; + flow->state = FLOW_INIT; + + pthread_mutex_init(&flow->lock, NULL); + + return flow; +} + +void flow_destroy(flow_t * flow) +{ + free(flow); +} + +int flow_set_opts(flow_t * flow, uint16_t opts) +{ + if (flow == NULL) { + LOG_DBGF("Non-existing flow."); + return -1; + } + + pthread_mutex_lock(&flow->lock); + + if ((opts & FLOW_O_ACCMODE) == FLOW_O_ACCMODE) { + flow->oflags = FLOW_O_DEFAULT; + pthread_mutex_unlock(&flow->lock); + LOG_WARN("Invalid flow options. Setting default."); + return -1; + } + + flow->oflags = opts; + + pthread_mutex_unlock(&flow->lock); + + return 0; +} + +uint16_t flow_get_opts(const flow_t * flow) +{ + if (flow == NULL) { + LOG_DBGF("Non-existing flow."); + return FLOW_O_INVALID; + } + + return flow->oflags; +} |