QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
QNX4: max send/receive buffer size for message passing via network? |
| Ref. No. |
QNX.000010283 |
| Category(ies) |
Network, Kernel |
| Issue |
When using Sendmx/Receivemx/Replymx, does the maximum message length of ~64K apply to the total amount of data transfered or only to each part? |
| Solution |
Actually, for local transfers through the kernel, there is no practical limit on the total message size. However, the kernel does make it's own copy of the mx table, so there is a limit on the number of discrete parts that the message consists of.
The 64K message pass limit (total size) is really only in the network case. |
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