Single use execution environment for on-demand code execution

A system comprising:

• a data storage medium;
• and
• one or more computer hardware processors in communication with the data storage medium, the one or more computer hardware processors configured to execute computer-executable instructions to at least:
• receive, from a host computing device in an on-demand code execution system, first hardware processor state from a hardware processor of the host computing device;
• cause first code instructions to execute in an execution environment on a virtual machine instance of the host computing device;
• while causing the first code instructions to execute in the execution environment on the virtual machine instance of the host computing device, the one or more computer hardware processors is further configured to:
• receive, from the host computing device, memory device state from a memory device of the host computing device, wherein to cause the first code instructions to execute causes:
• the hardware processor of the host computing device to change to a second hardware processor state, and
• the memory device of the host computing device to change in state;
• and
• reset the execution environment on the virtual machine instance of the host computing device, wherein to reset the execution environment, the one or more computer hardware processors is further configured to:
• transmit reset instructions to the hardware processor of the host computing device, wherein the reset instructions are configured to cause the hardware processor of the host computing device to revert to the first hardware processor state;
• and
• cause the memory device of the host computing device to revert to an initial state based at least in part on the memory device state.

A system comprising:

• a data storage medium;
• and
• one or more computer hardware processors in communication with the data storage medium, the one or more computer hardware processors configured to execute computer-executable instructions to at least:
• receive, from a first host computing device in an on-demand code execution system, first hardware processor state from a hardware processor of the host computing device;
• while first code instructions execute in a first execution environment on a first virtual machine instance of the first host computing device,
• receive, from the first host computing device, memory device state from a memory device of the first host computing device, wherein to cause the first code instructions to execute causes:
• the hardware processor of the first host computing device to change to a second hardware processor state, and
• the memory device of the first host computing device to change in state;
• and
• reset the first execution environment on the first virtual machine instance of the first host computing device, wherein to reset the first execution environment, the one or more computer hardware processors is further configured to:
• transmit reset instructions to the hardware processor of the first host computing device, wherein the reset instructions are configured to cause the hardware processor of the first host computing device to revert to the first hardware processor state;
• and
• cause the memory device of the first host computing device to revert to an initial state based at least in part on the memory device state.