kopia lustrzana https://github.com/micropython/micropython
47d02b3104
If the _IRQ_L2CAP_RECV handler does the actual consumption of the incoming data (i.e. via l2cap_recvinto), rather than setting a flag for non-scheduler-context to handle it later, then two things can happen: - It can starve the VM (i.e. the scheduled task never terminates). This is because calling l2cap_recvinto will empty the rx buffer, which will grant more credits to the channel (an HCI command), meaning more data can arrive. This means that the loop in hal_uart.c that keeps reading HCI data from the uart and executing NimBLE events as they are created will not terminate, preventing other VM code from running. - There's no flow control (i.e. data will arrive too quickly). The channel shouldn't be given credits until after we return from scheduler context. It's preferable that no work is done in scheduler/IRQ context. But to prevent this being a problem this commit changes l2cap_recvinto so that if it is called in IRQ context, and the Python handler empties the rx buffer, then don't grant credits until the Python handler is complete. Signed-off-by: Jim Mussared <jim.mussared@gmail.com> |
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| .. | ||
| axtls-include | ||
| btstack | ||
| crypto-algorithms | ||
| lwip-include | ||
| nimble | ||
| re1.5 | ||
| uasyncio | ||
| uzlib | ||
| webrepl | ||
| extmod.mk | ||
| machine_i2c.c | ||
| machine_i2c.h | ||
| machine_mem.c | ||
| machine_mem.h | ||
| machine_pinbase.c | ||
| machine_pinbase.h | ||
| machine_pulse.c | ||
| machine_pulse.h | ||
| machine_signal.c | ||
| machine_signal.h | ||
| machine_spi.c | ||
| machine_spi.h | ||
| misc.h | ||
| modbluetooth.c | ||
| modbluetooth.h | ||
| modbtree.c | ||
| modframebuf.c | ||
| modlwip.c | ||
| modonewire.c | ||
| moduasyncio.c | ||
| modubinascii.c | ||
| moducryptolib.c | ||
| moductypes.c | ||
| moduhashlib.c | ||
| moduheapq.c | ||
| modujson.c | ||
| modurandom.c | ||
| modure.c | ||
| moduselect.c | ||
| modussl_axtls.c | ||
| modussl_mbedtls.c | ||
| modutimeq.c | ||
| moduwebsocket.c | ||
| moduwebsocket.h | ||
| moduzlib.c | ||
| modwebrepl.c | ||
| mpbthci.c | ||
| mpbthci.h | ||
| network_cyw43.c | ||
| network_cyw43.h | ||
| uos_dupterm.c | ||
| utime_mphal.c | ||
| utime_mphal.h | ||
| vfs.c | ||
| vfs.h | ||
| vfs_blockdev.c | ||
| vfs_fat.c | ||
| vfs_fat.h | ||
| vfs_fat_diskio.c | ||
| vfs_fat_file.c | ||
| vfs_lfs.c | ||
| vfs_lfs.h | ||
| vfs_lfsx.c | ||
| vfs_lfsx_file.c | ||
| vfs_posix.c | ||
| vfs_posix.h | ||
| vfs_posix_file.c | ||
| vfs_reader.c | ||
| virtpin.c | ||
| virtpin.h | ||