ouroboros/src/lib/shm_rdrbuff.c, branch 0.17.2

build: Update copyright to 2020

2020-01-02T14:07:36Z

Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Update copyright to 2019

2019-02-05T08:58:08Z

Updates the copyright notice in all sources to 2019. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Revise du buff API towards a memory allocator

2018-10-26T06:52:31Z

This changes the API to the rdrbuff to treat it as a pool memory allocator. The head and tailspace to allocate in a buffer is now set system-wide instead of being passed as a parameter. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

Merge branch 'testing' into be

2018-10-09T15:18:06Z

lib: Fix padding in rdrbuff

2018-10-09T15:16:44Z

Multiblock writes that require wrapping will now correctly pad unuseable space at the end of the rdrbuff. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

Merge branch 'testing' into be

2018-10-06T16:06:47Z

ipcpd, lib, irmd, tools: Change SDU to packet

2018-10-05T08:35:25Z

This will change SDU (Service Data Unit) to packet everywhere. SDU is OSI terminology, whereas packet is Ouroboros terminology. Signed-off-by: Sander Vrijders Signed-off-by: Dimitri Staessens

lib: Support for rudimentary retransmission

2018-07-27T06:53:17Z

This adds rudimentary support for sending and processing acknowledgments and doing retransmission. It replaces the generic timerwheel with a specific one for retransmission. This is currently a fixed wheel allowing retransmissions to be scheduled up to about 32 seconds into the future. It currently has an 8ms resolution. This could be made configurable in the future. Failures of the flow (i.e. rtx not working) are indicated by the rxmwheel_move() function returning a fd. This is currently not yet handled (maybe just setting the state of the flow to FLOWDOWN is a better solution). The shm_rdrbuff tracks the number of users of a du_buff. One user is the full stack, each retransmission will increment the refs counter (which effectively acts as a semaphore). The refs counter is decremented when a packet is acked. The du_buff is only allowed to be removed if there is only one user left (the "stack"). When a packet is retransmitted, it is copied in the rdrbuff. This is to ensure integrity of the packet when multiple layers do retransmission and it is passed down the stack again. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

irmd: Remove shm_sanitizer thread

2018-06-08T14:06:52Z

This removes the sanitizer thread in the IRMd to avoid the IRMd eating the CPU when the buffer is full. The processes will clean the head PDU if there is a broken lock in the rdrbuff. Chances for a lingering tail PDU are slim. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Remove unused #define in rdrbuff

2018-06-08T08:02:02Z

This removes a #define that was not used anymore Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders