diff options
Diffstat (limited to 'src/core/lib/channel/channel_stack.h')
| -rw-r--r-- | src/core/lib/channel/channel_stack.h | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/src/core/lib/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h index 27f3be7b29..d9d3a85233 100644 --- a/src/core/lib/channel/channel_stack.h +++ b/src/core/lib/channel/channel_stack.h @@ -34,6 +34,13 @@ #ifndef GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H #define GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H +////////////////////////////////////////////////////////////////////////////// +// IMPORTANT NOTE: +// +// When you update this API, please make the corresponding changes to +// the C++ API in src/cpp/common/channel_filter.{h,cc} +////////////////////////////////////////////////////////////////////////////// + /* A channel filter defines how operations on a channel are implemented. Channel filters are chained together to create full channels, and if those chains are linear, then channel stacks provide a mechanism to minimize @@ -146,8 +153,9 @@ typedef struct { is_first, is_last designate this elements position in the stack, and are useful for asserting correct configuration by upper layer code. The filter does not need to do any chaining */ - void (*init_channel_elem)(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, - grpc_channel_element_args *args); + grpc_error *(*init_channel_elem)(grpc_exec_ctx *exec_ctx, + grpc_channel_element *elem, + grpc_channel_element_args *args); /* Destroy per channel data. The filter does not need to do any chaining */ void (*destroy_channel_elem)(grpc_exec_ctx *exec_ctx, @@ -156,6 +164,10 @@ typedef struct { /* Implement grpc_call_get_peer() */ char *(*get_peer)(grpc_exec_ctx *exec_ctx, grpc_call_element *elem); + /* Implement grpc_channel_get_info() */ + void (*get_channel_info)(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, + const grpc_channel_info *channel_info); + /* The name of this filter */ const char *name; } grpc_channel_filter; @@ -210,12 +222,11 @@ grpc_call_element *grpc_call_stack_element(grpc_call_stack *stack, size_t i); size_t grpc_channel_stack_size(const grpc_channel_filter **filters, size_t filter_count); /* Initialize a channel stack given some filters */ -void grpc_channel_stack_init(grpc_exec_ctx *exec_ctx, int initial_refs, - grpc_iomgr_cb_func destroy, void *destroy_arg, - const grpc_channel_filter **filters, - size_t filter_count, const grpc_channel_args *args, - grpc_transport *optional_transport, - const char *name, grpc_channel_stack *stack); +grpc_error *grpc_channel_stack_init( + grpc_exec_ctx *exec_ctx, int initial_refs, grpc_iomgr_cb_func destroy, + void *destroy_arg, const grpc_channel_filter **filters, size_t filter_count, + const grpc_channel_args *args, grpc_transport *optional_transport, + const char *name, grpc_channel_stack *stack); /* Destroy a channel stack */ void grpc_channel_stack_destroy(grpc_exec_ctx *exec_ctx, grpc_channel_stack *stack); @@ -227,7 +238,8 @@ grpc_error *grpc_call_stack_init( grpc_exec_ctx *exec_ctx, grpc_channel_stack *channel_stack, int initial_refs, grpc_iomgr_cb_func destroy, void *destroy_arg, grpc_call_context_element *context, const void *transport_server_data, - grpc_mdstr *path, gpr_timespec deadline, grpc_call_stack *call_stack); + grpc_mdstr *path, gpr_timespec start_time, gpr_timespec deadline, + grpc_call_stack *call_stack); /* Set a pollset or a pollset_set for a call stack: must occur before the first * op is started */ void grpc_call_stack_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx, @@ -273,6 +285,10 @@ void grpc_channel_next_op(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_transport_op *op); /* Pass through a request to get_peer to the next child element */ char *grpc_call_next_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem); +/* Pass through a request to get_channel_info() to the next child element */ +void grpc_channel_next_get_info(grpc_exec_ctx *exec_ctx, + grpc_channel_element *elem, + const grpc_channel_info *channel_info); /* Given the top element of a channel stack, get the channel stack itself */ grpc_channel_stack *grpc_channel_stack_from_top_element( @@ -289,12 +305,12 @@ void grpc_call_element_send_cancel(grpc_exec_ctx *exec_ctx, void grpc_call_element_send_cancel_with_message(grpc_exec_ctx *exec_ctx, grpc_call_element *cur_elem, grpc_status_code status, - gpr_slice *optional_message); + grpc_slice *optional_message); void grpc_call_element_send_close_with_message(grpc_exec_ctx *exec_ctx, grpc_call_element *cur_elem, grpc_status_code status, - gpr_slice *optional_message); + grpc_slice *optional_message); extern int grpc_trace_channel; |